In addition, you need to look the whitepaper/roadmap of a project if it's legit or not and also you need to do your own research about the project and the team who's behind it. Since all I know these scam projects are all over the place when the DeFi is the thing in mainstream.
Do not fall easily if someone you know promoted a project but instead do your own research always to avoid getting scammed. Since scammers are all over the place and would do everything they could just to scam someone, you should be vigilant when it comes to money.
Thats for sure a good point and yes if you doing this it can safe you a lot of trouble and your money.
Mostly you find some Information here on the Forum about it or just use google to find something.
That's is hella lot of work to consider researching the whitepaper or roadmap about any tokens that popped out of nowhere on an wallets. I'm sure the only thing needed is to not be bothered by any unknown tokens that got transferred onto the wallet, just like what @Lafu said.
This should be only done if you want to use the Coins or Tokens that you dont know about .
But i never have done it with mine as i dont bother myself with that kind of coins i dont know .
Scammers are very active nowadays, maybe this is because of the pandemic and the thinking of the scammers, people are now so trying hard to earn money so they can easily get hooked by the good offers by those scam coins, I already got scammed so many times ago by a new token, there are also some scammers who are copying the name of the token, most of the beginners can easily be got from this because they just search for the name of the token instead of the contract address.
Scammers was and are always active even if you dont see them , they try it with emails , FB , Twitter , Telegram , here on the Forum or phone calls.
You have to watch out every day .