Quoting the prior message(s) should be off by default. When paper letters were still written, did you enclose a copy of the original letter when you answered it? No. And nobody looks at the growing trail of the entire message thread that's copied below your reply. Just leave the subject line intact and anyone that doesn't have a brain-dead email client will see the messages threaded properly.

If you need to address a specific point in a message you're replying to, quote just that bit.

We are emailing TBs of data around daily that provides no value to anyone.