Should we clean up obsolete comments?
Sometimes a comment discussion appears under a question or answer. This quite often ends in some edit that covers the comments. Is it good or bad? Is it just tolerated or really welcomed? Should one clean the comment area this way often?
(I usually add a comment like: I think that couple of previous comments can be deleted. Then I delete my previous comments and after the second person deletes his, I finally delete this last comment.)