Found this while browsing around the web, an interesting 'profiling' of gamers of the genre
http://www.guildcafe.com/bartle.phpIt evaluates the percentages of 4 different aspects of one's reason to play a MMORPG, according to the highest score of one person, these are the definitions.
Achievers - Also known as the 'powerlevellers' - their goal is to get wealth, XP and such
prefer collecting points, levels, treasure and accomplishments that set them apart from other players--or simply present challenges.
Explorers - Look forward for new things, areas and such
enjoy finding all of the unique areas of the world, often enjoying the immersion of the experience.
Killers - Fit on the stereotype of the also not very popular 'PKers', name says it all
prefer the player-versus-player aspect of any game more than anything offered by the environment.
Socializers - Here would be most of the 'roleplayers' of a community, they focus on conversations, forming groups, organizations and circles of friendship.
enjoy interacting with other people, forming organizations, and finding cooperative solutions to the challenges within the virtual world.
My results -
Socializer - 100
That's what I look forward in a MMORPG, if it doesn't exist, a single player game will be more interesting for me.
Explorer - 53.33
I always liked to try finding 'secret levels' on many games
Killer - 40
FPS is one of my favourite genres after all

, still I prefer combat situations in quality - well roleplayed, interesting twists, etc- , not quantity, something that usually doesn't happen.
Achiever - 6.67
This is a game, not real life, no need to focus all your effort on being on the 'top level characters list'.
SEKA players are usually very interested in the the 'total experience' of a virtual world--meeting other people and finding the unique places within it. They don't care much for PVP or levelling, but meeting up with online friends to see new parts of the world is usually fun and exciting.
Also found another one for general online gaming on that site called 'Online Gamer Playstyle Survey', I guess I got something fitting with my interest on TBS, Tycoon, RTS, 4X and overall 'Something-Building' games, although I hated the final lines of description of the result I got though, too egocentric in my opinion - to like to organize and make tactics do not mean you 'mastered' the game. It was a 'Organizer-Strategist' , AKA 'Field Marshal playstyle.'
You don't care about what type of role you play--you only care about success. You tend to spend a lot of time on the metagame, learning about effective strategies and build concepts.
Note though, my definition of 'success' is not having the most powerlevelled/wealthy/equipped character.
If you would like, go there, and if you wish, give your results here too.
I know there were posts on the same subject, but anyway, taking out of its 'grave' a 2 or 3 years old thread about the same topic would not be good and also this one has the link for another test. So this one is for giving opportunity to the new people who did not post on those threads and also has another extra test too related with the same matter. I'll link to the old thread, if you are curious to see results from the people who posted on it -
http://hydlaa.com/smf/index.php?topic=10274.0Though I may be wrong, it seems a bit obvious to me that the 'Socializer' types are the focus of Planeshift. While MMOGs are more suitable for the 'Achiever' and 'Killer' types.