Unfortunately, for this very reason—Marta and I often exchange mobile phone images of in-progress Qubes UI things she is working on… precisely because of how stupid-hard it is to copy/paste things from/with Qubes OS.
Likewise: when I am near tears trying to figure “anything” out (not limited to Qubes—yes, many other products make me cry, too!), sometimes just a phonecam pic is all I can muster. Yes, I do this to the guys at my local John Deere and Kubota dealerships, all the time.
For all the reasons @unman has raised, I absolutely agree that it’s important to prioritize not using images as often as possible. Which, I offer-up as the UI designer—and as a highly visual person. It’s more important to get more brains on a thing, than it is for me to simply be lazy. However, if a problem really can not be presented (without significant barriers to the poster), to a community for help with in any other way, we should not be excluding users at an emotional breaking point from sharing images. Which I don’t expect Unman or others are suggesting we do. I just want to ensure we make it clear in any policies/rules, that we welcome all forms of participation… just to please be mindful of exclusion.