Anonymous reviews

Hey, those of you who post stories on fanfiction.net, do you allow Anonymous Reviews? And if so, do you find that it's worthwhile, where you actually get mostly good, constructive, serious reviews? Or do you just get a majority of idiotic flames because the person feels they can hide behind their anonymous status and therefore say whatever rude thing they want? I ask because it occurred to me yesterday that maybe some people want to review my stories, but they don't because they don't feel like logging in to the site. I know I sometimes get lazy and don't leave a comment because it involves some form of inconvenience.

But at the same time, if allowing Anonymous Reviews is just going to get me flames and spam, I'd rather not do it. You know how there are certain things that make you so, so angry that you just become livid when they happen? Anonymous flames do that to me. It is just the most cowardly, childish, sickening thing to me, that someone would try their best to make a complete stranger feel as bad as possible, and not even have the guts to sign it. I do not get it. It makes me want to smack people, I swear. *points to icon for my reaction to anonymous flames* So I'd rather not purposefully subject myself to daily fury if that's how it's going to be.

Those of you who have done it, how is it?