Board Thread:Support Requests - Community Management/@comment-35355617-20180501232000/@comment-1267828-20180506083256

Personally, as an admin of a wiki for almost seven years, I find Anons to be the life blood of my viewers and editors, arriving and going. We get vandalism too, sure, but I find that's a small price for getting new users who tend to make accounts and stick around for a while. Plus, it's not like someone with an account won't go vandalising a wiki.

Of course, there was a situation on one wiki I admin wherein we had to disable anonymous editing due to the fact that an anon with a dynamic IP was constantly altering their IP address, and Staff helped range block this user half a dozen times to no avail, so we had to disable the anonymous edits for about a half a year until we were certain they were gone.

Thus, the way I see it, registered only is a safeguard when you're being heavily vandalised, and doesn't serve any purpose beyond that.