Ignoring users makes it harder to moderate

Currently ignoring user work for all channels on server.
It's easy to ignore obtrusive users when you just want to joy conversation.
But then I got administrator duty on some channels, moderator duty on other. And see two choices:
1. I still ignore users annoy me on some channels — and they can do everything on channels I should moderate, I will newer see
2. I remove them from my ignore list — and will see they treats on channels where I just user.

I see 2 possible solution:
1. additional ignore list on per channel basis
2. option to disable my ignore list on channel when I have privileges to change content or privileges of other users.

The issue names no files, tests, or entry points. First clarify whether channel-specific ignore lists or disabling ignores for moderators is intended, then locate the client’s ignore and channel-permission handling and define tests for visibility in ordinary and moderated channels.

Written by the indexing model from the issue text.