What's GP? Gaussian process? General practitioner? Or, most commonly on HN, grandparent [post]? Or maybe the whole point of using that abbreviation is to exclude those outside Amazon?

I think he means LPs, Leadership Principles

Right - I meant LP's, for some reason they are "Guiding Principles" in my head this morning.

If you had said LPs instead, I still wouldn't have known what you meant.

This is one thing that really pisses me off about hacker news. The excessive use of abbreviations only hinders communication, it doesn't improve it.

LMGTFY (which you can Google if you don't know what it maps to) exists for a reason