Not sure a One click tool for these sorts of complaints is the best idea. It will inevitably be miss used by these same players you reference just making it harder for the support team.
I actually think that filing complaint to support is pretty solid option. Maybe month ago player was doing this type of thing to me and a took screenshots of chat and then muted them. Sent them to support, took maybe 5 minutes, and got an email 3-4 days latter thanking for reporting but that they couldn't comment further on it.
I know for a fact the player got a 7 day ban shortly after this, so while it might seem annoying these types of tickets do actually work and a worth your time. Just my two cents.
Bookmarks