I think it would be really cool if they would add the option on answering questions to attach a picture. I've been in the situation millions of times where I've wanted to attach a picture to show someone something to answer their question. This would be especially helpful in the math when someone has a question on a specific problem and you want to show them how to solve it.
It'd probably be also useful in chem and stuff like that, but I don't know much about those subjects so I can't say much there.
What about y'all? Do you think this would be helpful?