I do the same. Sometimes the snarky comment will make me feel good but usually I decide that the point I intended will be lost on the readers so best not to po

I do the same. Sometimes the snarky comment will make me feel good but usually I decide that the point I intended will be lost on the readers so best not to post. Ultimately it's still a kind of trolling and not adding value as you indicate. I also find that sometimes I'll write a well written and reasoned comment, but it may go against the typical group think. So I'll not post that as well. It seems all too often people use the arrows to indicate agreement or disagree instead of well written vs poorly written and the comments to debate the merits. Such is the nature of things.