Is it? How so?
Just because you like an alternative better doesn't make it a scam.
Sure they are turning a profit. But when you pay, you get more features. You don't need to pay if you don't want those features or want them somewhere else.
And they use some money to sponsor events. Titled Tuesday is a staple in the worldwide chess community and most top players play there. Not really yo make money, but to stay relevant (it's great PR to play against Magnus Carlsen and last for more than 20 moves or even make a draw) or to have a constant supply of really good players which keeps you sharp. They provide streaming and top-class commentary for top events. They are also involved in tournament sponsorship.
So, please keep the hate to yourself and don't use "scam" lightly. You don't need to like them or ever use them. But once you come across an actual scam, it would be a pity if you burned that term.