Yes you're right, it is putting the receiver of points into the wrong content.
I had actually 2 unknown persons who liked anything what I posted. They had never posted any content by themselves.
I posted a discussions "Do I have a stalker" in the moderator forum,to discuss this matter with other moderators. After that I contacted them by direct message and asked to stop this behavior, and only rate and like what it worth to be liked, and that this should be done to anyones content and just to mine.
So you should contact your moderators if it happens to you and you think it is not fair