[blackpill0w]

Isn't that (partly) the point of the upvote button?

[dredmorbius]

A thanks (especially from the person the thanked comment is responding to) can serve as a validation that the information provided was useful and appropriate, which an upvote alone fails to convey.

From my own recent history, this subthread: <https://news.ycombinator.com/item?id=37115294>.