The questions made my smile and I intuitively answered:
“It’s 2012, right? The number of such users must be insignificant”.
Another article shows why Yahoo.com data is a good source. It has almost all of the countries covered so we can get average numbers and numbers per each country.
I can’t imagine my life without Google Docs, GMail, Facebook chat and other wonderful things which are brought to us but small scripting language which started in 1995 at Netscape as a way to make text blink if not for the XMLHTTPRequest object. Brilliant minds even overcame cross-origin limitation with dynamically injecting script tags into to DOM. This technique is known as JSONP. But that is me — sort of advanced user.
For those unfortunate people (2% of Yahoo.com users) and search engine bots I must remember to put noscript into my HTML:
One side note: mission critical applications without control over clients’ environment, corporate and government organizations which must try to server all users still have to take into account a lot of things which consumer facing and startup companies could get away with. Being section 508 complaint also falls into this category.