deleted member

Need support. How can mass delete or block existing users on the criterion of "e-mail"? Perhaps there is a ready-made Add-on?

I have some issues with likes, since I had to reinstall xf and reimport data. On some posts I have "2 people like this", I did like that message too, but I can't see who are those 2 people. In the meantime, I'm able to Dislike the post, and after pressing Like again, I get the following: You and...