Everybody is as anonymous as we wish to be, and there are all kinds of perfectly good reasons for using a made-up name here, in place of our day-to-day name, and Jerry touched on some of them.

And if we ever need to be more anonymnous than we normally are, it's easy to log-in as a GUEST; and good manners to add a label of some sort on that GUEST, to avoid getting confused with other people. Complaints about people who don't do that have never been about anonymity, because most of us are anomymous anyway.