[grmarcil]

The line between "upvote for good point" and "upvote for agreement" can be blurry, same for downvoting.

In either case, both are accepted uses. PG has said as much:

https://news.ycombinator.com/item?id=117171

[thomasahle]

Interesting. I guess I was a bit too quick with my previous comment then.

However to me it feels a bit like discouraging alternative opinions, when they are hidden/greyed out.

Is this commonly accepted then?