Shambles
Bluelight Crew
(Well, sometimes. Sometimes they are in PD, right? At least methylone, I don't know about mephedrone. I don't visit PD much.)
Discussions on meph, M1 (and B1 and many others) can be found in PD, OD and especially EADD (and also many others) at the moment. Where these drugs can finally rest their weary heads and find a place to call home is still slightly debatable. I would suggest they all belong in OD as things stand.
I propose a compromise: give mephedrone its own forum, let bob loblaw mod it, and leave OD intact. How about that?

I have nothing against the copious discussion of opiates on OD however there are many more deserving topics to be discussed that often go overlooked and buried due to the flood of posts concerning opiates.
I believe if the opiates had their own forum, much more would come out of OD than the same posts that seem to get reiterated over and over (opiates are pretty generic drugs so the same questions do tend to get asked repeatedly).
Just my $0.02
Fine tuppence it is too you have there

The idea that OD (as in other drugs) will be discussed more and in further detail appeals to me and I can see that being a possibility if OD were to be split.