On Amethyst, you put filter on a proxy or broadcasting relay list, since it is not designed for others to use. Filter is just for you and your client. It shouldn't be on any list that others use to talk to you, like outbox and inbox.

Yes, but I haven’t yet seen a way to have your relay lists continue to work with Damus or other single relay list clients. I’m still stuck in the same boat.

Am I supposed to be seeing numbers like this?

Yep