Even if you did disable reactions, known contrarian trolls could still respond to all of your comments and posts with ragebait memes and "feels fine to me" regardless. I recommend using the block function for this reason, and that leads to a logically correct deduction. If you block someone (so you can't see them post "Beanbag is core to my build, feels fine to me /jranger"), that should also hide all of their reactions from you. It shouldn't prevent them from commenting or reacting, but it should hide both 100% of their comments and reactions from you. That seems completely reasonable, and helpful. If I choose not to engage with a contrarian anymore because there is no benefit for me seeing their thoughts, ultimately that's my right.