Autoexpiry of DCR-registered clients

11.2. Client IDs:

Implementors SHOULD expire ephemeral Client IDs that are kept in server storage to mitigate the potential for a bad actor to fill server storage with unexpired or otherwise useless Client IDs.

With Solid clients registered via DCR, things can get even worse as the applications normally do not bother (and are not required) to reuse client ID and secret across the sessions, registering a new one upon every user login. Thus, the number of dynamically registered clients could easily reach N_users * N_logins. OTOH, we cannot rely on the user agent for the proper client clean-up (even if we require it). That said, it is even more important for the OP to be able to automatically expire DCR-registered clients rather than the ephemeral ones.

I'd suggest adding this to the Section 11.

首先阅读 Section 11，尤其是其中关于临时 Client IDs 的现有指导，并审阅 issue 中关于通过 DCR 注册的客户端的依据。完成的标准是就一段涵盖通过 DCR 注册的客户端自动过期的清晰规范文本达成一致并将其添加进去，而不只是涵盖临时客户端。