[unabst]

A good UX would be one where the UI is invisible. So the bullet points would and should be about the elements that don't exist -- that are invisible. This makes "Really Good UX" an oxymoron of sorts, because the focus is on what doesn't exist.

Seems most of these are "Really Good Ways To X" where X is capture emails, retain those who want to leave, gather information at the expense of user attention, etc.

This, by definition, is bad UX, but good product design.

This dilemma is unavoidable. But it still should be made clear. Maybe not to users, but between designers.