Auto save interval resetting to zero

Title says it all really. Mentioned this a while ago, but it is defiantly happening, unless people are setting it to zero, but i dont see why they would.

Im not sure what happens when its on zero, but with one server, it had abnormal cpu for its age, floating objects were moderate, only thing that stood out was that the interval was zero.

Maybe with it on zero it tries to continuously save and causes lots of CPU from that? If so, this needs to be looked at asap.