ROFL, your list of "Have you ever" pales comparison to what the vast majority of celebrities go through on a daily basis. Hell, a lot of non-celebrities go through far more adversity and have to fight not to let life tear them down.
You really do not like Stoner do you ................ what did he do, did he beat your god in a fair fight?
Yep, many celebrities do get treated poorly by some people in the public and all for being in the public eye but that is nowhere near right as many of these people do not openly seek the limelight thrust upon them and nor do they deserve derision for simply doing a job that they happen to be skilled at.
The issue for me with these occurrences is that it is borne from the more recent phenomenon of 'cult of ownership' where many people seem to demand that the 'celebrity' is beholden to their will, wishes, wants and desires and therefore must accept this demanding behaviour that would be unacceptable were it to be forced on people not in the public eye.
You may rofl at the list and that Stoner experienced this, would you laugh were Rossi subject to the spitting, the constant booing and the personal attacks (and CS' issues were not forum attacks but threats/attacks made in public) as I suspect that you would be calling for those perpetrating the abuse to be the ones to suffer.
Oh, and before you ask - I have been spat on and at a few times by people who did not like decisions that I may have made or actions that I had done within a sporting environment. Let me tell you, it is extremely difficult to not want to rip the jugular vein from someone's through when they spit at you, but it is quite enjoyable to blow them a kiss and wish them well.