Touching the gray bar brings you to the bottom of the page, a quote button on the right site of the post and move the posters time stamp underneath their user name
A divider like the light gray bar as seen below would work perfect too
Clicking the quote brings up a window overlay
Tapping the users avatar or name brings up their mobile profile, allow tapping their avatar to bring up their profile/send them a PM
The board list with Settings on the top right corner
Settings allowing you to turn off avatars, stickies, use a smaller font
Main board
It's just an idea. I know it may not be feasible, but this needs to be looked into.