I mean if you have a better idea for how to assign your attention, then I am all ears. :]

I'd say trust is a pretty reasonable way to assign attention.

I guess the fairest way might theoretically be to require everything to be submitted anonymously, with maybe authorship (maybe submissionship) only being revealed after some assigned period?

This is better for the incubants, but would require a huge amount of energy compared to "Oh, simon finds this interesting, I'll take a looksy".