He wasn’t going to add compass because most people don’t use it, but then he added it to the Core 2 Duo as a favor to a friend who helped on that version and wanted a compass in it.

https://www.reddit.com/r/pebble/comments/1jea5cc/ama_with_eric_migicovsky_lets_talk_about_the_new/migw1ct/

There was discussion about implementing Hashcash for Lemmy: https://github.com/LemmyNet/lemmy/issues/3204