Is the 'm' significant (possibly 'mobile') or would 'light(mode)' make more sense?
Other than that, beezer idea!
'm' is used for a lot of websites mobile versions.
The main one I can think of being Facebook. Since lite mode is probably mainly used on mobile devices the less to type the better.
I m n-lite-n'd
DYSWIDT? .... (tumbleweed emoticon)
You're welcome.
Obviously any forum can setup whatever address they want to their lite versions, so if you wanted to run a forum and it be http://litemodesuperlongaddress.bastardsforum.ch you'd be very welcome to!