Maybe I was thinking of this:
http://forums.carrionfields.com/dc/dcboard.php?az=show_mesg&forum=47&topic_id=153&mesg_id=153&listing_type=search
- Observation / Exploration XP no longer yield edge points.

Of course that contradicts the page Ishuli linked.
1. Experiences

Characters receive edge points for reaching the following tiers of XP:
* Commerce XP: 7.5k, 15k (L30+), and 30k (L51).
* Exploration XP: 5k, 10k (L30+), 15k (L51), and 30k (L51).
* Imm XP: 500, 1k, 2k, and 3k.
* Observation XP: 5k, 10k (L30+), and 15k (L51).
* Role XP: 1.4k.

Whatever the deal is, it's been a while since I put much time in a character, and edges seem way down from my last 200+ hour char.