Faced with a funny bug (or all the same features?).
You can not raise the karma of the user, if the one who votes has no published posts.

But you can vote negatively!
UPD: Sorry and +1 to everyone who suffered during the experiment.
UPD2 . Please do not confuse the situation with “User A has
no posts . User B
has posts and karma> = 10 and can slap him a minus, but not a plus. "Here is a completely different situation:" User A
has posts. User B
does not have posts , but has a karma> = 10 (transferred from the habr) and can slap user A with a minus, but not a plus. ” I don’t see any logic here, so it seems to me that this is a bug.