You can like a comment without clicking the like button/upvoting it.
I very rarely like videos or comments. It's not like they're thanking you for literally just, like, enjoying reading their comment or smth, it's for the physical act of pressing the like button.
But sure, I see why ppl could think that.
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u/Bisque_Ware 18h ago
It's not that bad. For whatever reason, the likes made them happy and they are sharing that. It's positive at least.