Reviving this – had a nasty bout of food poisoning, and I’ve only just recovered enough energy to respond

Steven Adams being good
I’m not surprised that he’s good, but rather, how good he is, even in comparison to other high offensive rebounding guys (who are often positive, but not hugely so). I suppose that Adams actually doubles as being the best of these guys rebounding wise and a better passer than them.
From what I’ve seen, there are definitely benefits to a centre having an assist/turnover ratio exceeding 1, so an incredible offensive rebounder with a strong assist/turnover ratio (and an elite screener on top) is doing a lot of things to keep team offence flowing nicely. Something to keep in mind. In fact, I’ll revisit this a bit more later.
Kobe Bryant in the playoffs
What’s surprising to me is that even though playoff plus minus indicators are quite spotty, the indicators that we have (shadow’s playoff RAPM from apbrmetrics, jalengreen’s RAPM) don’t actually paint Kobe as a particularly notable playoff increaser (nor the converse, for what it’s worth). I recall looking at team DRTG once and didn’t really notice anything noteworthy either (and bear in mind that he played alongside Shaq, arguably the poster boy for “playing his way into shape”).
Perhaps these samples are hampered by some inconsistency (for example, he seemed better on defence in his championship years than the years in between, affecting the regression algorithms) but it’s stunning how universal these poor defensive results seem to be. Perhaps he’s just not as good defensively as even the RealGM convention states? Offensively, he does look superb though.
Patrick Beverley being better than other guys
Our previous discussion on this is actually what sparked this thread!

Jrue Holiday’s DRAPM
Truth be told, Jrue Holiday looks like a monster through impact stats. I feel like he has multiple “stolen” All Star berths in recent times. In the seasons in which he’s above average on TS%, he appears to be a monster on the offensive end too. Just an all around really, really good player.
Arvydas Sabonis’s DRAPM
Truth be told, I’ve been watching the NBA properly for around 20 years at this point, and I’m 32 years old, so there’s not too much I can contribute (even though I do remember watching Arvydas play, I was a kid AND a casual back then)! I have, however, taken note of just how good he looks even into his 30s, and seeing that a broken down Arvydas has Tim Duncan-esque box scores (albeit in a more limited role) whilst also looking great through impact stats gives credence to the possible greatness that the NBA lost by not having this man play until his 30s.
Or, perhaps I should just go back and watch some more videos!
Yao Ming’s ORAPM
Whilst I’m surprised that he often appears as a negative, I’m not actually that shocked that he doesn’t appear as an elite offensive force. Very talented scorer, certainly, but tsherkin already highlighted the key issue with Yao – his passing was just… not that good. Many of the key offensive bigs in league history (Duncan, Garnett, Shaq, Kareem, Olajuwon during the 3 peat) were not only good scorers, but also both more willing and more capable passers. Without watching him game-to-game in his prime, I wonder if Ewing also falls befoul to this quirk given the general mediocrity of the Knicks offence (anybody want to chime in here?). But yes, I watched Yao, and when we think about things a bit more, I think they become a bit clearer.
Now, I don’t think that this means his scoring is worthless, because being a very strong defensive player, his scoring has value regarding team building and matchup exploitation, especially if Yao were transferred to the modern day.
He’s almost the antithesis to 2022 Steven Adams, and I think that it does bring attention to the facets that “boost” a big man’s RAPM. I don’t think that RAPM, even in a similar role, is a definitive ranking or anything, but it’s worth looking at trends in data and seeing that perhaps even an elite scoring big that is a fairly woeful passer relative to others in his scoring realm might not have the impact that we might initially think.
This is an additional benefit to box score composites – whilst they might not provide the “answer” to player rankings, they might highlight weak points within players worth looking at in greater detail, and tsherkin has already noted that Yao doesn't actually appear to be anything noteworthy through those composites.
Malone/Stockton/Sloan
Fun discussion all around – I don’t have too much extra to add here (same caveat regarding Ewing/Sabonis that I mentioned earlier, although I do remember watching these guys a bit more).
Baron Davis
Baron Davis almost seems like a “best case” ballpark for inefficient scoring. Truth be told, seeing him shoot 2/9 from 3 on what seemed to be a regular occurrence can be a sight for sore eyes, but one thing Baron Davis was is an excellent creator. Inefficient as hell, but he was ridiculously athletic and probably one of the most unappreciated passers in league history. From memory, his ratio of “at the rim” passes to turnovers was incredible. Furthermore, I’d hazard a guess that shooting so many 3 pointers means that relative to his scoring efficiency, he could be inflating the offensive rebounding rate of his team (e.g. shooting 40% from 3 and 60% of 2 might be “equal” efficiencies, but the former gives the team a chance to rebound 60% of all shots).
Also, although the sample size isn’t immense, Davis was an outstanding playoff performer, which probably boost his numbers a bit relative to perception.
Honestly, is this all that dissimilar from what Westbrook provided in his prime? Davis was probably comparably efficient to Westbrook (worse in terms of scoring efficiency, better in terms of playmaking efficiency) and 15 year RAPM actually places them directly next to one another. Ditto for T-Mac – not particularly efficient, but voluminous and an excellent playmaker to boot, even if his tendencies leaned more towards the scoring side of things.
After all, whilst we might debate the merits of TS%, I think it’s highly valuable, but it’s also not the only way players can be valuable on offence – it’s more so that the best offensive guys in recent times (e.g. LeBron, Nash, Curry, CP3 etc) are great at scoring efficiently AND playmaking, and those guys generally rank ahead.
It’s some food for thought when we go back and try to assess how good other “inefficient” scorers were. That's actually one of the benefits of RAPM, IMO - we don't have extensive RAPM for the past, and whilst the league isn't apples-to-apples by any means, there's the possibility of being able to prescribe rough "bounds" for impact estimate over time.
Ricky Rubio
Question for anybody viewing – how big is the gap between Rubio and Kidd?