Forget about the sidebar. I thought it was a good idea , but it isn't.
Regarding the community, It wasn't in the line of "building a community as a key to success" but rather give profiles some more strength, use something karma-like to reward users who work, the ability to score TL;DRs and allow multiple per page, etc.
Yep, that is definitely planned. Especially a karma-like system to reward users who work. Since you're helping people by providing tldrs, we are thinking about the count of people who read tldrs you created, meaning the number of people you helped.
Regarding the community, It wasn't in the line of "building a community as a key to success" but rather give profiles some more strength, use something karma-like to reward users who work, the ability to score TL;DRs and allow multiple per page, etc.