Seeing your reply I was curious, what's the highest token that has 4 letters, opened coingecko and, I realized I'm out of touch with altcoins.
So, I'm guessing you'll be surprised too, in the top 10 coins there are four with five letters and one with five.
USDT, USDC, BUSD, DOGE and MATIC.
I counted 20 more with 4 in the top100 before I gave up.
Maybe we won't run out of 3 or 4 letters but for sure we're going to run out *USD* 4 letters abbreviations, there are 87 damn stable coins!
As you said, this has to stop, it's worse trying to recognize a coin that going through hundreds of listed companies on the stock market, and scammers take advantage of this every day.