<sigh>
I'll agree saying "This game is not fun" and stopping there is poor. After all no real feedback there. The Admins and Devs need to listen though too. Looking at this game I have to wonder if it tried being too big right out of the gate. A smaller world would leave more time to develop sub-systems better. It's too late now, unless someone wants to "reboot" the world and everything in it. Even then people would complain.
I see systems that don't have enough people working on them, for the size of the project. I see some poor organization as to the breakdown to the mechanics and sub-system maintenance required. This includes the quest sub-system with all its broken quests and parts that don't mesh well at the moment. I can see some opacity in the ground I walk on and see the skybox underneath. I can see where some terrain meshes don't connect, or don't connect right and the holes left behind.
I started playing around 2006-7, the last of the 0.3.x period and stopped around 0.4.0, not to come back until 0.5.7, and some changes. Some good, some that were "What the..." moments. I left because the game was starting to get boring, even with friends. Then I come back to a game that in some ways seems to have taken a few steps backward while trying to improve. I feel this game has a lot of potential, it just isn't realizing it because some things are too complicated or not explained clearly enough.
It's fun when you got friends to play with... Solution: make friends and play with them.
It's not fun when quests leave you clueless, or frustrated because you don't know where to go, who to see, or if you have to initiate the conversation by typing, or hoping the dialog box pops up all the time. Players can't directly do much about it, except file bug reports where it's a bug, and grumble when it's not. Devs need more people with all the right access to all the appropriate code and IP to fix it properly.
It's not so fun when before you took a break, your character could take on an ulber alone and win, just to come back and find that so many below an ulber are now hard to beat, AND EVEN WORSE: The gage used to determine if a monster is something you can tackle says you have a chance, only to have your life redirected to the death realm 3-5 hits from the monster later. I understand balancing, but I can't understand a system that says you have a chance to win a fight when you can't.
I'd suggest the devs get together somehow, and revisit all the design documentation, and how they can get it back on track, while not being afraid to cut what has been found to be bad, and try something else if need be. The devs need more people to help. 8+ years is a LONG time, for any game. (Someone brought up Duke Nukem Forever, A game where the graphics can show when they were developed, and game play showing nothing original and cutting edge like Duke Nukem 3D did when it was new.)
Would I help? I dunno. But, if the vision for this game is lost, the game is sure to follow.