I think it might be good to have some kind of a way to credit POTN participants for good things they do on the forum. In this context 'good things' would include giving helpful responses to posted questions, and accumulating Likes. The number of threads started might also be included. The credits would be best calculated as a fraction of the total posts, so that quality rather than quantity gets emphasized. Still, total posts are a useful measure and could also be included in the formula. Getting banned would lose points.
Some forums, photo hosting sites, and other organizations like eBay have merit systems in place and those seem to be very successful.
One could think of many ways to compute merit scores. The rules could be fixed and published, but could also be kept secret, and even changed every day, or points awarded ad-hoc at times, in case members try to game the system.
Besides a Like button, a Helpful button could be added to posts.
A merit system at POTN could be useful because it should encourage helpful replies and might reduce less useful banter. Members who garner points or have stars or badges to display might get more well-deserved respect, and attract fewer silly challenges from greener members.
OK, that was just an idea that I thought I would raise that might be worth discussing.


