I also received some of these tokens. But I did not add these to the main wallet. Because I know I didn't buy these or get them from any airdrop. So I never tried to swap these. These shit tokens are sent for advertisement purposes. It is better to stay away from these tokens.
If it's true they are doing it for advertisement purpose, then it will make many people label their token that they send as shit token instead.It seem there are many tokens like this and sometime people just consider these tokens as free tokens they get from an airdrop.
To have these tokens can be confusing and it will be better if there is a way to remove these tokens that have no value instead of ignoring it.
When we follow a lot of airdrops and there are many tokens that land in our wallets sometimes we don't know which tokens are really safe and which are fake tokens,
we have to be really careful of course to secure our wallets,
it's true that tokens like that are better removed I hope it can be done