hi coderanger,
I have some answers to your questions:
1.) Yes, git contributors do count towards the 7 person limit, this is correct.
2.) There will be some banners announcing these changes in the UI - i think these are already active, but you should definitely see them starting tomorrow.
3.) No, your account won’t stop working, but you are encouraged to either a.) limit your contributors to six or below, or b.)chat with our sales team at some point soon to discuss your usage and what upgrading would look like if a.) isn’t feasible.
4.) Good to hear that you received this most recent email. We’re the first to admit that our original roll out of these changes wasn’t communicated as well as it could have been and we made mistakes in doing so - some people were not notified when they should have been, or notified to their billing email addresses which not everyone checks. For complete transparency on how the rollout went, this thread is the place to start reading: Upcoming changes to Netlify plans
if you have any technical questions about your account, please do let us know.