@Martin Urbanec (WMF), thanks for letting us know about Visual Preloading during the meeting earlier with @L235, @JFernandez-WMF, and @KStoller-WMF. Overall, this looks like a helpful feature! To provide an example of one way I'd immediately put it to use:
A while back, I wrote w:Help:Simple guide to vandalism cleanup as an attempt to guide readers with no editing experience through the process of reverting obvious vandalism they might come across. One option the page provides, for users who are not confident enough to revert the vandalism themselves and looking at a page too low-traffic for a talk page post to be noticed, is to submit a request to the help desk (the If the page is not high-traffic: content). I tried to structure the request a bit by using a wikitext preload, but it would be better to use a visual preload, and better still to have a simple form.
I hope it's helpful to have that example. Thanks again for the chat earlier and for all your ongoing work in this area, and feel free to reach out anytime! Cheers,