Completely made it up.....put it does lay it out in a very understandable manner.
As far as the original aquestion....I don't think MLC will ever be diagnosed a disease. I feel that it will be treated as a behavior associated with an underlying mental disorder. Much like the sliver....there wouldn't be an infection if it wasn't for the sliver.
I think the psychological split on MLC proves that point. Some doctors don't see it...they want to discover the underlying issues because that is the truly the problem...while others see it and think the underlying issues are a cause.
Like Jack says...if it looks like a duck..so forth and so on. We just need to be like the therapist and be emotionally detached from the MLC'er.