On first order principles, I reject your premises that "throwaway" account names make accounts worthless in the long run. There are tons of counter-factual examples, e.g., "ironic name."
> Ps, if you check my post history, you'll see <insert resume"...
See, this is circular reasoning. If your account is "worthless," what incentive do you have to be reliable/honest?
What's interesting is that I think you know these counter-arguments and are trying to steer away from them.