How to ruin a show in a easy step? Make season just for money and not for the content

I mean the 1st season was just heartbreaking and, in my belief, really necessarily. However what's the point of season 2 and 3? Actually I really don't remember anything from the 2nd one. And, maybe, the only good thing about season 3 is try to put some depth in the character of Bryce, tho in my experience I cannot really tell because I haven't been able to finish the 3rd season.