In the Reddit thread, another MeFi administrator sums it pretty nicely: MetaFilter has rules about that sort of thing because it wants to encourage a certain kind of community. Other sites may have different rules.

"On Metafilter, specifically, deliberately impersonating a disinterested third party to get in arguments about yourself or something you've got a personal stake in is a problem, yes. It's anathema to any kind of sense of community and continuity of identity. Other places can have their own rules or lack thereof. The heterogeneity of the Internet is part of what makes it interesting, and certainly no one is or should be compelled to be a member of Metafilter or Reddit or any other site the rules or community guidelines of which they don't like."

Direct link: http://www.reddit.com/r/comics/comments/gqzgx/dilbert_creato...