For example, it is very hard to come up with a sort list of clear content rules. There are all sorts of ambiguities. For example, when is nudity ok? What about violence? Every line you draw in the sand will have false positives and false negatives. See any number of stories about Facebook moderators who despite having lots of content rules, will make subjective and contradictory judgement calls.
Furthermore, with a concrete list of rules, bad actors will act just to the left of rules violations. Clearly, having some feedback is required. In this case, however, we don't know what Jordan Pier knew, since this was initially a reaction to the channel's deletion without consulting with Jordan about what happened.
Finally, having a support deposit--no matter how small--will disadvantage many creators and increase the divide between haves and have-nots. I admit that it's frustrating that you literally can't purchase a human's attention, but every policy decision like this has profound ramifications when you have billions of users.