Personally I would kill it if you feel it is draining resources.
In its place, I would recommend creating a sticky thread where people can post up a chat url/irc channel/etc that they run. If a member of DP staff wanted to volunteer to maintain that thread, and check occasionally for activity/broken links/bad or predatory link/etc then that would be an excellent service to the community. Community members could also ofc post up experiences with various chats.
That way DP chatters could still find a home, but it wouldn't be a monetary or legal liability for the site.
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