some of the comments made in the sbbs.el and support thread concerning the refusal of many very competent individuals to use anything that requires an account or execution of arbitrary source on their machine.
I must be extremely competent then, even though I'm still using x86 and have a few accounts I haven't knocked out yet, lol. HTML and CSS are declarative languages and still arbitrary source, ECMAscript is still a no go regardless of the argument, it's horrific.