Yes, this is what I head in mind too. People would subscribe only as long they need to export their project, definitely need additional features.
Unless you have an idea for a similar service, I’m really hope PlayerIO is among your experiments. I have just done my experiment which is ended with an online chat app made in GD (a very basic one):
I know it is not impressive, but I think it is demonstrate how easy and convenient to set this up with PlayerIO.
I’m sure many people would benefit from events to be able to talk to a PlayerIO server and even though the server code must be written in C# and compiled in to a dll in my opinion it would be possible to include a general purpose server code already compiled in to a dll to receive and broadcast position, scale, rotation…etc of selected objects and values of selected variables that people can upload to their PlayerIO game profile and done.
I was looking at many similar services but PlayerIO seems the most simple by far but still scaleable even for professional use. I plan to use it for my multiplayer game ideas I have but frankly even though it works with GD through the JS events, I’m not certain it would be an ideal way of doing it.