People who require free speech is a bit of a narrow scope but still a good selling point for many people who might never need it. Most of the time, if you want to try out becoming a content creator you would also many times end up becoming the consumer. So by locking out content creators unless they pay, could prevent growth. The more activity and videos there are on a platform = more consumers might join in.

Even if that ment I only would make a few videos a year, it could still add to the activity with many others who feels the same.