yes, absolutely. It's never a good idea to elongate your chapters, you'll lose the audience.

more than 100 chapts...id drop it

Au contraire! Long chapters allow for better character development and detail, I think, so. Rather, short chapters turn me off. Honestly, I'm inclined to turn my back on fics with chapters the length of 1000-2000 words or below, unless they are drabbles.

No, the longer the chapter the better (at least if it is a good fanfic<3)