Use case: web developer surveys

[foolip]

I want to highlight a proposal by @BearCooder in web-platform-tests/interop#285 (comment) where web-features could come into play:

What about creating the following dev survey:

Pull a list from Can I use with all features that are at least supported by one main browser but not in the others.

Make a list and ask specifically in the survey about the features what developers want to see to get wide browser support and ask why/whats their usecase/why its missing etc.

I believe this way we can get a better overwiev what people would like to see supported.

This project is about creating such a list. Just an FYI, no action is required from this issue, and it can be closed after a week.