> No, it's not, unless you are calling an entry in DB with an URL inside "a product". NFT system is selling NFT only, and NFT itself is almost nothing and useless.

Calling an entry in a DB? What kind of db exactly... maybe a public distributed ledger (aka a blockchain)? Hmmmm.....
The Mona Lisa itself is almost nothing and useless. Just some paint splashed on a canvas hundreds of years ago. Totally worthless. To someone out there. Just like NFTs are totally worthless to you. Heres a small life tip: do not waste your time, energy or money in anything in life that has no value to you, because you find it totally worthless to you. But you are just one being, among seventy billion others alive today. So what is important to you, will be worthless to billions of others. Does that make them idiots? No. But it kind of makes you one if you expect everyone else alive to value only exactly what you value. Live and let live.

> Ok, I see you really calling the NFT itself a product. This is amusing but I must tell you that you are either misled or malicious, because other cryptobros sell people not NFT but the stuff it links to - digital file usually. And they brainwash buyers that they (buyers) are really buying the digital file.

You used to term "gullible buyers". The key word here being BUYERS. The definition of buyer is someone who takes ownership of a PRODUCT... in this case an NFT from someone else. I'm glad you find the concept amusing. Welcome to the world of trade and capitalism. The buyers are usually speculators. Look that term up. Ever heard of the dot-com mania? The tulip mania? If you think they were just buying flowers, you have a lot to learn about human emotions and motivation. Coca-cola is not just selling "colored sugar water".

> I won't write long here, but we can see here that NFT don't facilitate any kind of "proof of ownership" and even NFT fans agree with this - you need some centralized receipts and police according them too :)

So what? If I buy an NFT, I wont be buying it because of "proof of ownership". The very fact that I can buy it today, and sell it to someone else at a profit tommorow is all the proof of ownership I need. Got that? Thousands of NFTs are being bought and sold daily, in a marketplace. Not sure what other proof of ownership (the ability to legally sell something) you are looking for... but like I said, it seems you're still new to this world of trade and capitalism. You'll learn eventually. Hopefully.

> Decentralized proof of ownership, which is impossible today.

It is possible. You just dont understand how it works. The only impossibility here is your ability to understand what proof of ownership in the digital word entails. Can you proove that you own the hacker news account you are posting from? How? Did you just say email account and password... DING!DING!

> That was about new NFT fad I'm seeing - gaming NFTs, where bros expect that different competing corporations will for some reason implement a universal standard for items between different competing games and voluntarily implement and support it. Pure BS but that is one of the NFT promises today.

Fads will come and go. It is human nature. NFTs are no different. Websites were once a fad in the dotcom boom. Some fads help advance our tech and knowlegde.