Keeping the debate even moderately civil requires constant vigilance from the moderators and community managers. There is a constant stream of nasty comments -

Keeping the debate even moderately civil requires constant vigilance from the moderators and community managers. There is a constant stream of nasty comments - you don't see them because they are removed quickly. There were times where no one was present to moderate, so the post was temporarily locked. It has since crossed into the four digits of downvotes.