I logged in, and found out one of my saves had a down vote. I checked the next, and the next, and I realised that all of the had been downvoted. I removed the "Vote up" thing after the rules save was introduced, so I'm sure that's not the problem.
I guess its nothing really to worry about, but I'm pretty sure it's because someone hates me and downvoted all my saves. To prove this, I need someone like Simon to check the IP addresses of the votes, and I guess I need to know whether that's against the rules.
If it's not, it's no big deal. Can anyone suggest what the cause might be?