django says :
The probably best way of proving that you have no integrity, is to post anonymously. Take responsibility for what you write! Necessary corrections are part of that responsibility.
Let's finally dismiss the idea that posting with a registered username has anything to do with integrity, or honesty, or anything else. I'm sure you were around to see vroom and tye shake out the votebots and multiple user ids (hi, eliza! hi slurpee machine!), but you're still willing to put more credibility into a pseudonymous post than an anonymous post? I don't think that makes much sense at all.
perlmonks has an entirely different anonymous community than slashdot, which seems to be the primary source of the 'anonymous posters aren't to be trusted' line of thinking. Perlmonks is not slashdot. There have been many intelligent and insightful posts that come from people who don't want to be identified with a particular user id, or, for that matter, don't care to be identified at all.
Don't hate them just because they're anonymous, mmkay?