C4S don't charge for hosting, but two things did happen
1.) They got rid of the whole catfighting category and so catfighting producers had to move to another category such as Female Wrestling or Female Fighting
2.) They started compliance whereas you needed to create a performer profile for each person appearing in the videos with their ID and signed and dated model release form
During this time a lot of producers left the platform with many of them ending up on Gumroad which doesn't require ID or model releases.