Could be, but it's also not uncommon for plagiarists to try to stay on topic by copying something from earlier in the thread.
Do you run a bot or something that helps you find plagiarised posts? You are always the one to find them and very quick. Share your secrets sempai.
If it happens to be one that I reported - it's fairly easy for me to find it. Other than that, it's not so simple. bones261 already gave you the link re: bot, but as far as...
the count of copy-pasted posts is > 2.
.. that's almost impossible to determine. You'd have to scan the whole post history and even then - if you don't find plagiarism it doesn't mean there wasn't any. All that effort for trying to justify
one ban. As opposed to scanning the same number of posts in a shitcoin thread and banning the whole farm.
I think with the options that global mods currently have (temp/sig bans) it's not so much of an issue anymore.