I was looking a the questions with the most votes, and I noticed what appears to be a bug in the sorting system.
All the questions on page 1 seem fine, but the votes on questions on page 2 drop off precipitously. The last question on page 2 (30th highest voted question overall) has only six votes.
The first question on page 3 has 27 votes, so it seems back to normal, but then towards the end of page 3, the votes drop again and the last question on page 3 (45th highest voted question overall) has -7 votes.
There seems to be a bug in the sorting system. It does not appear to affect other sites like StackOverflow and AskUbuntu.