They're the ones who issued the standard. https://tools.ietf.org/html/rfc6108

Just to be clear. This is not an IETF Standard that has gone through the standards process. It is an "individual submission" published as an informational document. The IETF does not endorse documents classified as "informational."

I have a "compression" feature for my jsfuck fork: http://centime.org/jsfsck/

only worth it for long enough code, but then the browser is having a lot of trouble parsing the obfuscated version...

Still: "The js code of this page has been encoded (see source). Compression reduced it from 288k to 37k characters."

Without parenthesis (requires 8 characters though):

http://centime.org/jsfsck/