Some exchanges have started delisting dozens of coins.
Kucoin for example has just delisted 102 altcoins, including Binance's stablecoin BUSD. See
Binance itself has been doing a bunch of delisting too: BitShares (BTS), PERL.eco (PERL), Tornado Cash (TORN), Waltonchain (WTC), ‘stablecoin’ AEUR.
Binance is also going to kill BUSD at the end of this year:
So what happens to coins that are delisted? Unless they're on other exchanges, they're dead. If they're still listed on small exchanges, their chances of making highs when bitcoin pumps is low, as the smaller exchanges won't have the volume or investor interest.
Hard times are coming for small coins.