Have you considered the possible future where they just remove /cwls altogether and just make linkshells DC-wide?
It's really not. That sort of encoding scheme isn't very intuitive, and the two Ls don't carry meaning beyond "linkshell". What's the second L supposed to mean?? /c# or /cl# would be far more meaningful.2 L's for crossworld linkshell. Super easy, fast and extremely easy to remember.
But really, we should just have linkshells, with /l# commands. We don't need linkshells and cross-world linkshells.