The shipping issue was on a used sale, it was discussed in a different thread - it had nothing to do with ML or any dealer.
Given that the panels can age or get dirty, and given that there are a lot of new people buying used, sometimes very old ML speakers, there are bound to be some problems and questions. A couple threads lately, but not a lot that I've noticed - 2 yeras ago I bought a used pair of SL3 that have been flawless, so much so that I recently bought used CLSII, and the problem I had was not with ML, rather that 14 year old panels were represented as new.