Having global restrictions that affect every show is no doubt useful, but in the case of certain shows that get multiple releases (thinking specifically of anime, but anything fits), it would be useful to flag up certain keywords I want or don’t want.
Anime in particular tends to get released by different groups, each group having different subtitles, which often involves having different translations - as such, being consistent is important. If, for instance, I want to get the Ganbarou release of Ajin, but not the TenchouSubs or KamiFS releases, I don’t see any way of ensuring I consistently get the release I want.
Therefore, it’d be useful to flag [Ganbarou] as a “must contain” on Ajin, or any other release group on any other anime or anything else in any other TV show.