Reading that post made me go through all my reps. I go the number 102 good reps and I think 7 bads. (Although 4 were from Xristos for saying hes a clown, joke, etc.
I think bad reps mostly come from when you say something outrageously bad or unpopular with a bunch of people. I.E. a thread titled "Safin is a joke, he sucks and is obviously gay" would be bad repped to hell. Alternatively, a very funny thread (such as my "Laws of MTF" thread) give many good reps. My laws thread gave me I think 20 goods, and an endearing use across the boards and sigs