This is the convergence of two different issues -- excessive, patterned downvoting is the primary issue. But that issue could be resolved if we knew what the motivation behind the downvotes was.
There is a point where a pattern of voting is obviously punishment for something. If this goes on for a long time, there is no good reason the attribute being punished should remain unknown.
The first vote on every one of my posts since the middle of last month, except yesterday, is an unexplained downvote.
This is not reasonable behavior. There is obviously something that these have in common. If were just being by me, the automatic detection would be triggered. So I assume it is some attribute. Not identifying it over and over again is childish.
I hate to whine, and I don't care about my score, but this is passive-aggression at a level the site should not tolerate without comment.