Yeah, blacklist prevents you from seeing their chat. It also prevents them from joining any PF groups you make(possibly even just with you as a member, but im not positive about that). It doesnt block random matchmaking. Aside from that, there isnt much you can do about an obnovious res macro. You could maybe say something(and people do make the cringiest of macros), but even if all 23 members of the alliance raid agreed they arent super likely to change. Once they start throwing insults, being rude, and refusing to do their job? Thats when you file a report. The devs take harassment seriously, and if the guy was as nasty as you say then he would get a talking to/strike on his account at a minimum. If that isnt enough to get someone to play nice, it might at least be enough to get them to move their BS out of the party chat and over to FC/LS/discord. And once its out of party chat, you dont need to worry about it anymore.