@realcaseyrollins I'm not 100% sure how blocking rules work, but I think the tagged user will still see any replies, assuming he hasn't already blocked their authors too. If that's the case, then I gotta agree with @ckoppelman@mastodon.online - your followers are going to see your post and, if they reply, either inadvertently or deliberately dogpile the the user who's trying to disengage.
If replies to a blocked user inherit that status, despite having a tag in them, then obviously this objection collapses, but I don't think that's the case.
@khird @ckoppelman Ah the dogpiling aspect is a good point. I'll refrain from tagging blocked peeps in the future then.