Sorry for being late, just forgot to check here..
So I did use the preferences thing, because I obviously couldn’t block the mod directly. It’s limited to direct messages and notifications. Direct message one simply doesn’t work, he can still PM me, we’ll I don’t get any notification so that’s good.
What ignore does is hide the posts, which is not possible for to do on mods. Basically that is what I really want, I can deal with notifications, but not PM and constantly seeing his replies and posts.
Muting really doesn’t work as a solution.