Recently, I’ve realized that I cannot take care of this wiki on my own. There are way too many vandals (It's a wiki about memes, so this can be expected.), too many unneeded images, pages, categories... It's just overwhelming! The only other admin lost the code to his account, and cannot do anything right now. I'd be grateful if someone could help.
I see, that is a bit of a situation you have. Perhaps you could persuade them to register accounts?
By the way, I noticed that you guys have some redundant user rights settings. DarkAvenger2016 does not need "rollback" since (s)he has "content-moderator". Also, since you have "sysop", you do not need "chatmoderator", "content-moderator", "rollback", and "threadmoderator". Those permissions are automatically bundled with "sysop".