除了自动扣款失败但还占用付费会员名额的非有效付款会员之外，在Patreon上还有一个很奇怪的会员Tier。这个Tier的触发条件我不太清楚，不过可以肯定，如果关闭了正常会员订阅通道（类似名额已满这种情况），还想订阅的用户触发5$隐藏Tier的机率会大大增加。
这个Tier既然是隐藏的，自然就无法取消。以下是Patreon官方的回复，如果你是创作者，请一定看完。
I’m truly sorry for any inconvenience this may have caused you. I know how frustrating it can be when trying to keep your members organized.
Every creator page has a “custom pledge” option that members can choose and I’m afraid this cannot be removed.
Some members may want to support a creator, but can’t afford to join a tier. Or in this case, unable to join a tier due to them being sold out.
That said, you set the price of your tiers, and we respect that. The custom pledge, or “No Tier” option exists, so members can still support you with whatever they can give.
No tier members (custom pledge patrons), only have access to posts you publish for “All Paid Members.” If you’d like your posts to be locked to members who are paying you outside of your tiers, you’ll want to publish your posts for “Select tiers.”
