I think one of the reason why is there are so many useless tokens minted on TRX is because they are easy to create and the fee to start a smart contract is not just low compare to other chains and that's why you wake up every day to see useless tokens on your wallet address.
The new place where this scammer are using is BSC, I checked my wallet some days ago and I was surprised that I was dashed about 20 different strange tokens from different projects, just a pure scam to steal your bnb.
Please avoid those airdrops tokens.