I've seen a few people say they won't be using Mozilla products any longer, which is up to them of course. I doubt it is any significant number of people.
The only thing I've seen that 'crossed the line' so to speak was the okcpuid thing urging users to stop using Firefox. I didn't see exactly what the message was. It sounded more like a marketing stunt to get some media attention. I think if it had been other people/companies targeted then people on HN would have been applauding their disruptive and entrepreneurial marketing department.
I don't see that that crosses any line, as such. It used to be very common for websites to tell people not to use Internet Explorer, sometimes on a purely technical basis, but often on a "Microsoft is evil" basis. This seems similar to the latter.
The only thing I've seen that 'crossed the line' so to speak was the okcpuid thing urging users to stop using Firefox. I didn't see exactly what the message was. It sounded more like a marketing stunt to get some media attention. I think if it had been other people/companies targeted then people on HN would have been applauding their disruptive and entrepreneurial marketing department.