Allegedly, on or about 25 March 2018, chicago sent:
Don't quote the entire email.
For sure, and only what's necessary for your reply to make sense all by itself.
In fact, don't quote anything at all when you reply.
I wouldn't do that, as a first choice. Sure, if you have a mail client that's a bastard to selectively quote, or won't let you edit the reply, it will probably be preferable than posting a large message with a tiny response.
But, generally speaking, make your reply understandable as a stand- alone message.
The other option when quoting is technically hard to do, is to paraphrase the questions you're responding to in your reply. As you would have done in traditional mail.