NFTs and am I old and don't get it, or am I simply unwise?

Reading about NFTs makes me think grift, though I do admit the idea of allowing singular digital art (much of what I do is digital) a kind of mark of originality is fine by me (and many are super big, so whatever is online will never be the same quality as the OG). So like crypto, as a ledger, it seems really legit and has good uses. But the more I read about it, the more it seems like a grifter's paradise. Or at least another financial instrument for the rich to evade taxes and such.
People's work gets stolen. 
Also my stuff isn't meme worthy and so I'm guessing it will never make it in that market (I'm fine with that, and think the meme stuff is interesting, you know? It certainly plays into what humans like). Anyways that marketplaces for NFTs are making ~3billion dollars a month is something I simply don't understand (out side of the money laundering views). 
Also artists are being contacted to make close to 1000s of pieces of art to turning NFTs. The hustle is on. IG got into it (and artist hate it), and others did too. 
Well that's the artist view: lots of theft. But I looked up Cardano for an NFT and found out about Verlux. First google result. okay, seems fine. But discussions online make it seem like a complete scam. None of the developers etc are known. Yet the site looks sooo nice it almost fooled me. 
And I go to Cardanonft sub and it seems all promo, you know? So I'm sticking to r/cardano but still... do I know if what it lists is legit?
In this thread we have a list of places. A posted these (and they seem to post in a variety of places so not entirely bottish or at least not dumb bottish:

https://Cnft.io

https://Jpg.store

https://genesishouse.io

https://Tokhun.io

https://Nftjam.io

So I might give these a try. JPG.store is one. Spacebudz Artano also gets love. The Jpg.store and CNFT(dot)IO and tokhun.io gets validated in another post. Huh, we'll see. like I said, mainly memey stuff, and that's fine, but not mine. 

That being said, apparently I have the use of NFTs all wrong. It's not for verification of digital art. PGPs can be used for that. So, yeah, still wondering why this money laundering scheme is so out in the open. 

Okay now I'm seeing betting NFTs and that seems interesting to me. 

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