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That is why an NFT is basically the code, and it's headed to represent more that just the image, because it's true, you don't own the image, you can't actually protect it from copy online, only for certain uses, but NTF is meant to be more

I havent been able to sell my nft for a long time. and its just sitting there in my wallet

Are they just an image or do they have other uses?

Hmm
They have other user
Was told that since the crypto crash
Liquidity have been removed
My Nft was stacked to get some tokens and those token don’t have good value for now because of the liquidity problem

So the usage is non existent now so not worth buying.
That is why you won't be able to sell, not because they are NFT. That is the issue, an NFT just for the sake of it, or with little to no usage is not worth buying even if it was before

Yeah
That’s the main reason I can’t sell it now

You got a point, however its important to note that the NFT technology is very powerful but it is mostly used for plain old jpegs and that is the worst use case for NFT's