But at the same time, completionists or "OCD players," will feel the need to complete every little quest, which can be tedious and lead to the player feeing "overstimulated" with the bombardment of quests they have accrued. Some people enjoy doing this, other's do not.
For instance, when I go into a town, and this doesn't just go for BG2, I'm gonna pick up every quest I can, unless it really conflicts with my morals. I don't pick up these quests necessarily because I enjoy doing every last one, but because I don't wanna go further into the game and find out that I missed out on something awesome, so often times I'm compelled to pursue them for reasons other than enjoyment.
So if I come out of a town with 20 quests, then pick up even more while I'm in the process of doing said quests, I wind up feeling as I said earlier, "overstimulated." Like I have to take a break from the game because I just can't deal with all those quests right now. This was a big problem I had in MMOs, where the quests just felt "grindy," even though I was the one that overburdened myself with quests. The thing that made this more stressful in the BG games, was that a lot quests had time limits.
At the same time, spacing them out quests can also be a burden, because many players don't want to have to search high and low for quests, or feel lie there's not enough in general. It seems like there are numerous balancing acts at play here regarding the topic, and I hope Obsidian handle's it well from both ends of he spectrum.