Nick/user whitelist

[Syampuuh]

Describe the solution you'd like Unless I'm super blind, which is a possibility, there does not appear to be a way to have messages only from a specific user or users relayed, there are only exclusion filtering tools.

Describe alternatives you've considered I've tried using exclusion regex in IgnoreNicks, but they either don't work or throw regex errors. This isn't really helped by the regex tester linked in the documentation being offline since 2019, which leaves me a little unsure what regex formatting I should be using...