YSK: Many Terms of Services have a "forced arbitration" clause, meaning you agree not to sue them in a legal court. You can sometimes opt-out within 30 days of enforcement. Always check to see if and how you can.
from /r/YouShouldKnow
YSK：许多服务条款都有 "强制仲裁 "条款，这意味着您同意不在法院起诉他们。您有时可以在执行后30天内选择退出。请务必查看是否可以以及如何选择。