The way it is arranged i don't think that significant torque will be applied by the kickstand, only a compressional load along the axis of the stand tube. The only way to apply torque would be to grab and pull the stand and use it as a lever; even then you would have to pull pretty damn hard to even flex the chainstay, much less "snap" it.

If you are going to replace logical thought and basic physics with concern about urban internet rumors you had better stay home at your computer where it is safe.