Site is scammy. PERIOD.
Sure they pay a lot of people. but then they scam a large percentage and keep their coins.
That's how they keep the scam afloat.
But how do you actually know or validate that they really pay alot of people ? They must provide the transaction id of tx hash of those but if they cant provide any proof aside from huge numbers that you can see on the headline of their site then there is a high chance that their site is shady .
Ive seen alot of sites that claims that they pay alot of users and all of those sites are scams . A legit site does not need to put a claim like that . They dont need to brag whatsoever .