I understand the fact that what I may find spam, the MODs may not find it spam and hence my percentage is dropping.

However, some members make personal comments/attacks on other users, make bad comments about religion, help others to commit suicide, talk about drugs and so on and I report all those comments but I find that the reports are excluded and so I don't get what can be the reason as they being considered "BAD."

Also, what if half the number of my reports are "BAD", will the MODs start disregarding my future reports?