@Nuria: you seem to have missed my point, which is that
http://handlebarsjs.com/ is just one implementation of the design.
Other implementations exist -- 28 of them are listed at
http://mustache.github.io/ alone -- and some of these offer a more
principled approach to escaping.
In particular, I keep mentioning the [spacebars] implementation, which
is based on [htmljs] and is a structured template system, without the
need for any explicit escaping.
--scott
[spacebars]:
http://meteorhacks.com/meteor-weekly-spacebars-tired-meteorite-autoupdate.h…
[htmljs]:
https://github.com/meteor/meteor/tree/devel/packages/htmljs