I was browsing through the users section of askubuntu when i noticed something strange:
The number beneath the user's name was not equal to his reputation, althought the list was set to be sorted by reputation.
When somebody answers my question, the number beneath his name is the same as his rep, but on the users list, it is not.

Also my number seemed to be naegative.

So i have two * questions:

1. what does the number under the users name in the 'users' section mean?
2. what does it mean that my number is negative? is it bad? What can i do to make it better?

If anyone has answer i would be very thankful, if this question is too stupid or a duplicate, just tell me to delete it,
thank you.

*(Actually it's 4 questions, the last two ones are not necessary to be answered)