Today something weird happened to my account, I got 4 downvotes on questions in less than 2 minutes.
I thought it had just happened to me, but, when requesting for moderator help on chat, I saw that user Luke had the same problem too. So, I just researched on another users and I found out that another users had exactly the same problem as me and Luke, such as slhck, Moab and techie007
As you can see, all of them just happened about the same time. So, there was a bug from system? Some angry user mass downvoted everyone or something? Could some moderator check this?
Note: To be exact, the downvotes all occurred around 18:25 UTC.
(screenshots for evidence)