"I don't know how anyone can trust any statement from these guys."

this is the fun part, you can't!

The way I read that is Discord would delete your data, but they were taking an intentionally hands off approach to the data broker they subcontracted to identify you.

The one thing you can trust is this:

If a tech company says something to you, and they don't give you the means to verify it on your own, they are lying to you. Do not trust anything they say, ever.