This goes for all servers. Mcleaks accounts can get out of hand. That's why I got banned, because my brother was hacking on one, but not only because of that. After a staff bans each hacker, they get more accounts from mcleaks and once the staff leave, they keep on hacking. I used to do that, I don't do that anymore, I don't know about my brother. My suggestion is to hire a group of staff members or people that volunteer to go over all (or most) mcleaks accounts and ban them for compromised accounts. It might take a few hours, days, even weeks, but it saves a lot of times for staff other times. This is a very helpful technique, and mineplex does that. Mineverse is a lot smaller than mineplex, and it needs it more than mineplex.
Honestly, I personally wouldn't mind doing that, it would end up helping the server quite a bit. There are some issues though. Would we have to gather proof of every single account we were to ban? If we were to gather proof then that would take forever If we didn't then Moderators can easily abuse this system and just ban random people There are multiple account generators out there so as much as banning all the accounts from mcleaks would help, they can simply just get another source income. I'll remain neutral for now.