true, I thought about that as well, but didn't put it in the post to keep it short and to the point.

for some people who get like hundreds of comments that would probably be too much as well

and I was actually thinking about comments that start a new tread, not comments in reply to other comments, that would be too much as well

and yes, when I'm on somebody else's post I usually upvote the comment I reply to and the last one as you said, that comes kind of natural, right?

but when I see a post with like 3-4-5 comments, and although the author usually replies, when he doesn't upvote those few comments, I think it's a waste ... it's not the right etiquette ;-)

think about the effect if it becomes indeed the norm and all of a sudden people start to get at least some votes for their comments ... because it's about thousands of individual authors watching their own posts = of course they should only reward the proper comments ... it would be a good way to make sure everybody gets at least the acknowledgement

to me it seems that giving some acknowledgement to those few people that actually liked 'your' post to not only open it and read it, but also comment ... is just a matter of good manners