JS is basically AS1.5 with no appropriate alternative. That’s why corporation like MS and Google promote their own language TypeScript and Dart.
For experience developers switching from AS3 to JS is like switching from chainsaw to axe. Surely you can do a lot of thing with it but a large code base have to be built from scratch to speed up development time.
You have to make decision right now, Flash as web interactive and animation tool is not a choice anymore cause it is now game and mobile app development platform.
You are talking about Coding Standard and I agree there must be some sort of regulation about that. Careless variable naming just shows how amateur the coders are.
Also I believe code commenting is a must for every file uploaded to marketplace, at least at AD we have done that for years.