You are entitled to your opinion. If you can't see that TheIrishOtaku made a comment that didn't address anything other than make a direct reply and dismissive, derogatory remark to someone's reply, a post which was not humorous, joking, or unserious, or trolling, and was just my honest statement that I paid the game, and I sure as hell didn't see a free version on Steam, which is where I got it, and you think that was appropriate. By all means, give him a Thumbs Up. His post was literally nothing but an attempt to belittle and dismiss someone's comment while adding nothing.
My response to him was literally, 'if you didn't chip in, good for you.' Not name-calling, not calling him pathetic, not a scum-sucking freeloader. Then ended with 'Weird flex, though.' So unless you're claiming 'Weird flex' is some jerky response... I guess we can see who instigated it. He already said he wanted to drop it, not that he wanted someone else to jump in and keep it going.