User blog comment:PsiCubed2/Well... It was nice while it lasted./@comment-32213734-20180513054242/@comment-1605058-20180514132100

Making a new email address is just as easy, if not even easier, than doing IP switches. It's a matter of a minute or two to make a new account and I'm sure it will be of no worry for a dedicated troll. Indeed, we had a user in here who has created hundreds of new registered accounts with a sole purpose of adding a single edit with each of them. Email verification is, at best, a minor annoyance, but by no means an effective measure.

Phone number verification, on the other hand...