Forum:Deleting information from Discussions

I've noticed some people going back and deleting conversations and comments from user pages, not in a malicious way, just 'cleaning up' after conversations that have seem to have been resolved. Is it really appropriate to do that? The other wikis I frequent don't seem to do this (or at least will shift content to archive pages instead of deleting it). I don't see why we need to have 'clean' talk pages. I see no upside in it, and on the downside we lose insight into why articles ended up the way they did. What do other people think? -- Xerxes 13:14, 9 April 2007 (UTC)