Blocking feature

Hello. Is there any way to block a user once and for all? The most I can do is put "-uploader:username" but it only hides their posts that they uploaded and not their comments/forum replies. I found out that many people here are in connections with a certain disturbed user and I don't want to hear anything about them. If this feature doesn't exist, can the developers implement it? Or at LEAST, make the explicit/questionable posts that are embedded in comments when you have the rating tags blacklisted not be shown? Thank you.