Not at all. It's not a real language.

Do you mean "tendencies" or "intentions"? I haven't heard of 'Anglish'. Languages should develop, as long as we don't scrap the fundamentals because lazy people want to use text-speak and ignore grammar and spelling.

I think the vast majority of people in Britain have never heard of it. I hadn't until I reading your question

No-one ever uses it, unless for entertainment value or just nerdy glee. I'd put its popularity just below Pig Latin. I think "Uncleftish Beholding" is a brilliant piece of work, but only because I can see how certain mechanics and words in the Old English/Germanic part of the language are used to replace the regular forms in a scientific (ahem: "worldkennish") document. Linguistic purisim has been tried in many other languages, and I haven't heard of a successful result yet.

I hope it is not popular))) purism is suck =)