1. You seem to be implying that there's something wrong with share buybacks but aren't explicitly stating it. I'd be curious to know what your criticism of share buy backs is?
2. Anecdotally, I still think EPS is by far the more widely used metric. EPS numbers can be negative so there's not much use for loss per share numbers, and most public companies have positive earnings.
3. This I agree with, SNAP's lack of voting rights is really concerning and initially SNAP didn't seem to traded at a discount because of that. It's worth noting it's down over 40% from the price it traded on the day it went public, although potentially for other reasons.
I also generally agree that people would be far better off if they educated themselves a little better on what they have their money invested in.