You are not wrong there. But what´s your suggestion? Do you want to check/control every posted/to post meme on the platform? You cannot blame a platform for providing a place to upload things there.
I am not going to check/control every posted meme on the platform, because even if I will or did, there's nothing I can (or will) do. The problem that might arose is between the original meme owner (e.g. Sammy Griner "the success kid" or Laina Morris "the overly attached girlfriend") and the meme poster.
As for my suggestion, obviously is not to try earn through the platform, especially as the platform already confirms (and wash their hand of) the legal implications and most likely won't assist you when it really comes down to the court. Posting on 9gag or IG is probably a light case because you didn't get any money through it, thus the legal infringement (maybe) is lighter. Posting with the aim to monetize a copyrighted content, though, is a whole different case.
So I had a long talk/chat on discord with one of the lead team members of the platform regarding this topic (with "Mr.Google", just to let you know):
According to him, they "have some moderators browsing daily, and investigating weird ones (removing/banning)
and we have a report feature where ppl can report memes
everything reported get checked, and if we re sure its fake / copyright infringment etc, we ban etiher
1) nft, or 2) wallet or 3) profile (all wallet of this profile)
So then its not visible on Nudes.Army
Its ofc still on the chain, but that is between the user that "stole" and the user that claims it his/hers and not within our control (as with minting mona lisa as an NFT)"
Moreover within the next versions, there will be report buttons onsite (currently only in discord), additionally to the downvote function. And they want to provide the necessary information if it comes down to the court.
"Hey, that is an interesting aspect!
Thanks for bringing it to my attention"
-Mr.Google
So yeah, sometimes you need another perspective on things. They are grateful for everything which can improve the website and make it a safe place to post memes and earn with it.