Wow, I am amazed this thread is still alive.
What turns me off about DF, and I've posted this elsewhere, maybe here... is...
Well, it is unpopular, but I'll lay it out anyway.
found a lot of things wrong with the groundhog bite today. First, a groundhog ripped a lion in half and bit off a dwarf's arms... and it was using every part of its head (eyes, nose, etc.), not just its teeth, for the biting. After I fixed that up, it was still using its teeth like little needles and piercing brains and so on. I eventually got that sorted out.
Some systems in the game are WAY too simple, like farming. While some systems in the game are way to complicated, like the health/layers system.
I think the game is simply too complicated on a level few players will really understand. You have individual layers of flesh, bones and tendons. Why? Why make it that complicated. A system which allows the loss of limbs would be just as effective, almost as cool, and take a fraction of the time to develop.
It seems incredibly awesome, but now you have to spend time checking pointy-ness of the teeth of the groundhogs! And when all is said and done, the average player isn't going to look that deeply at how their guys lost his arms anyways.
If you are talking only about what turns new players off, I am going to stick to mouse support.
Click and drag mining baby!