Yes, but that needs to be balanced by the distorted form of reputation people get even when they are polite and thoughtful due to the lack of any emotional channel in text-based web forums. Add to that the fact that in real life, people have many sides to their personalities, which are inhibited or eccentuated in different contexts; but the impression the web gives of people lacks those contexts.

Then, consider the good that anonymity has allowed for; think of all the things people have able to speak out about anonymously which would have gone unsaid.