Some things just take time to get right, even if we'd like it to be otherwise.
That's fine; I know this to be true (I worked on Perl 6 for eight years).
Yet I'd be equally as tough on Mozilla if they had a history of throwing away working code just as it's in most danger of being useful while claiming that it's both "useful" and "usable". I don't expect dramatic and rapid progress, but I do expect an accurate assessment of the project's state. If you can't (or won't) support real users, be honest about it.
Is that so much to ask?
I'm only interested in [Perl 6] for curiosity's sake...
I don't blame you. After all this time, it's sad that that's about the most positive thing I can expect. I certainly didn't volunteer time and effort for so many years to produce a curiosity. I wanted to use it, but there you go.