I was taking a look at http://stackoverflow.com/reputation and I saw something like this:
2 4391811 (10) 2 4580949 (10) 2 4580630 
I noticed that I have just another reputation log with
[ ] and I wonder what it means. Just curiosity. (in the case above, I didn't accepted any answer nor get un-downvoted, so not sure why I earned 2 points).