I am seeing tons of multiboxers in this game

[Moorea]

Obviously I do kill stuff; the stuff needed to quest and things aggroed along the way - also doing the Krall quests I don't stop the second I'm done with my drops/quest but we continue until everybody in the group got them

There are many quests which only open after you've done others and many that don't even seem to show up as "grey mark" one level and when you come back after dinging there is a bunch of blue new quests - I suggest you visit the flight paths and quest hubs of the zone you're in several times (though this happen pretty naturally between the "deliver this" and the returns)

Saying that it takes time to get to 50 has absolutely nothing to do whether or not you need to grind to get there - from my current experience; yes it takes longer to get to 20 in aion than in wow; but that does NOT mean you need to grind - just means there is more content "per level" (and that combat takes a bit longer than wow, per mob, probably) - likewise the xp number you need to level is irrelevant - what matters is how many you get by completing a quest - and completing a quest gives you the xp of the reward AND the xp of the kills... A recent quest return for level 20 gave me 120k xp, so like kinah vs gold; aion xp is a different scale and it doesn't make sense to look at absolute numbers - just whether you can do your quests and level and so far it is (earlier someone claimed they had to grind a lot to get to 21; I can say I duo-ed to 21 without any grind - unless you count clearing krall as "grind" I call this fun mmo group quests...) - maybe it changes dramatically from 21 to 23 but it didn't from 19 to 21 so I have my doubts... I'll be happy to say when I do run out of quests, if at all

ps: and again I get 1/2 of the kill xp for all the normal non elite kills (in group of 2) - so solo players would certainly not run out of quest to 21 (assuming they do group to do the group quests...)