Fair points, but I guess a smart anti-abuse system could be implemented in that case (maybe users could get points only for non-abusing, valid submissions which will be reviewed by trusted users?).

Maybe I couldn't express myself well there, but solution #1 emphasizes on an approach for convincing user to submit crash reports; not the app itself only. I haven't seen it but guessing that the reporting app doesn't work in this kinda average user friendly approach.

Crowd sourcing can be harnessed for good of the community & products, so if we just can do it in a right way...