I'm mostly a lurker here, but many times I get drawn down the rabbit hole of a thread troll. Perhaps there should be a little statistic next to a users post, similar to how "Messages" and "Reactions" are shown, that shows how many users have "Ignored' a certain user. They still get to post what they want, but at least there is an indicator of how many folks have engaged this person and found that it really wasn't worth their time.