Sure, the people making these things should feel bad about it, and ideally change their choices... But if 5% of Firefox users can't use your page, and your page is important, they'll consider Firefox broken and go use something else.

Firefox isn't doing so well on market share, and appearing to be broken isn't going to help.

You have now stated that "those people should feel bad" for the second time. Personal attacks will hardly bring any change into this world. I'd instead suggest that you propose actual ways to solve the same problems that Javascript-based SPAs have solved which the non-JS web is still stuck with.

And you are failing to observe a difference between what should happen and what has actually happened.

Changing the latter costs money - time from people’s lives.

> And that’s a bad thing

Why?

You’ve given no argument that this actually is “abuse”

I made a web game that's simply not possible without js. Is it your contention the it simply shouldn't exist? Lots of people seem to enjoy it and I think they'd be disappointed.