Good idea, I wish there was more of this on XDA.
Perhaps if for each development project there was a dedicated thread for chatter, expressions of thanks, etc people would feel more comfortable using it.
Development threads might not grow to thousands of entries, with almost 0% of the entries actually about development.
I'm new here, post count is very low - but my posting habits won't change when I eventually get to 10 posts - unless I do get around to actually doing some Android development I can't see a reason for posting in the dev area.
I guess though that some dev's may prefer it the way it is, as a sign of recognition, or something...