Index paper isn't good for drawing comics. It doesn't provide the quality and durability you need. For comics, you want a paper that can withstand erasing, layering of colors, and still maintain its integrity. So, it's best to avoid index paper for this purpose.
Not really. Index paper is usually thin and not very absorbent, so it's not the best choice for drawing comics. You might have issues with ink bleeding or colors not showing up as vividly as you'd like.