Well, all these cases of plagiarism were published after I handed out the merit. Never know in advance what might happen in the future. At that moment, that is, yesterday, I did not find anything that could arouse suspicion. But the next day comes and the user seems to have been replaced and he began posts plagiarism.
Don't worry about it: getting Merited means the user has more to lose, so the ban hurts more

Again I will be in first place among those who gave merit to banned users for 180 days.

Yep 
Amazingly, I'm not even in the list anymore. That hasn't happened in
years! I guess that means I don't Merit enough Newbies anymore.