While I have yet to find a major issue with what is available in Ryzom at the moment, I do have to disagree with the idea that quests will ruin a community. There are some rather large quest based communities at the moment in far more profitable games.
I am the sort of player that loves to group, occassionally raid, PvP is fun so long as PvE is available as well, and yes... I do love to solo.
I prefer a good balance between solo and group play. Sometimes, I just feel like taking on a challenge or five to see if I can do it myself. I find that when I group, I am more of an asset because I know my own abilities from soloing.
I am also a big fan of lore and progressive story. I like the occassional quest to advance part of a story, though I would much rather it not be a grind fest to get each part of the quest completed. I plan on doing as much of the encyclopedia missions as possible, and would love to see that concept advanced. It gives people the option to quest if they wish, while really doesn't effect the current player base... unless some of you secretly wish for more quests.
The simple fact of the matter is... all games must evolve somewhat to include that which the people who pay the overhead of running the game want to see. I do not want to see Ryzom become an EQ2/WoW clone, but I would also hate to see it never get any better because some are afraid of change.
In the eventuality of things, games like Vanguard will come out and attract a large number of players from many existing games. New games may introduce new features which could severely limit the interest of existing games, costing the developers of existing games revenue, which means lower development/support budgets thus less happy players. There needs to be a balance between new features and content, and the existing style of play.
These are, of course, just my points of view.