This is new to me, might not be to everyone. If you achieve 100% completion in a zone (all waypoints, skillpoints, hearts filled, etc), you get a piece of mail sent to you from the ‘Tyrian Explorers Society’ that contains a weapon, armor, and stack of crafting material, and coins.
Full article: http://www.guildwarsinsider.com/10-stress-test-explore-rewarded/
That's kinda cool... I didn't know about this one either: You can’t trade directly with other players. Instead, you can simply mail the item to them!
That, however, isn't too cool. I mean, mailing an item is alright, but it's a bit inconvenient if they're right next to you...I wonder if there's a mailing fee based on how expensive the item is too :\
"I'm not reading reviews when I can just ask this board." - TormakSaber asking about a Sam & Max game on the TF2 board.
Nice! I have not tried this. I feel like the exploration is a thing that GW2 nails. You really want to explore and go to all the different parts of the map. I found myself even going to other starting areas finding new way points, points of interest, and skill points, which also all give a decent amount of XP. And with the downleveling, even lower level new maps do not feel completely pointless if you want to do the dynamic events there.