they see the problem with congested network and use the opportunity to blow it up big
have you wondered why there are drasticaly less spam transactions filling the mempool now?
and strangely while btc.com recommends 5 Satoshis/vbyte | 0.00001 BTC/KvB
as I'm writing, bitcoinfees.earn.com still showing 110 satoshis/byte as recommended fee
I have yet to understand why some people use a website to see how much the transaction fee should be.
Your wallet will recommend you an amount, and you can manually adjust it, so there's just no need for an external source of info. Or you may check mempool size, eventually.