I think the answer to your question can be found in the altcoin section, but I will summarize what happens:

If a person X creates an altcoin without any purpose, without anything useful, but millions of people like that altcoin (it's complicated to try to understand what people like) and this altcoin has millions of people in its community, what do you think any exchange will do if that altcoin asks that your altcoin be listed on the exchange? Do you think the exchange will refuse? if the exchange refuses it can lose millions of potential customers and without customers an exchange cannot survive.


yes it has advantages, as I said exchanges need customers and these shitcoins bring customers to the exchange