They don;t under pay people, its a site where oyu earn what you make same as tapas. you get 50 percent of locked chapters I belive tapas is the same.
Some people make $5 dollers a month from sales some people make $20,000
There is no requirment to write chapters or post daily at all written in the contract.
Where people get confused is they offer something to help new authors but you are nto required to do it.
If you update 1,500 words per day for the whole month they will pay you a minmum of 200 dollers.
But if you amde more sales then these thats fine. And if you only uplaod once a week and make more then this its fine. i think thats where people get confused, because ovbisoley 200 for 1,500 words a day isnt a lot.
I only write a lot to stay on top, because thats what the audience likes there