Update: I do know one language like that, meta-html. It had a small following. Written by Brian Fox, of the bash shell. One of the optimizations was, to kill all spaces in your code... because to do output, it'd replace code with spaces or their literal output. But if you put code in a for loop, it'd just repeat the spaces over and over. So killing all spaces made things "better". (http://www.metahtml.org/)

It's forking model was horrible too... It would get a request, fork a new listener thread and use the current thread to process the request. And when that thread received a request, it would do the same. Really lame...