Your binary list of reasons as to why "non-holders" are discussing MNS is simply not accurate.
There's a plethora of reasons as to why someone might post on a stock. Examples include: Education, testing theories, previous dealings with obnoxious shareholders giving a sense of schadenfreude as an overvalued stock gets dead and buried, social, research, potential investment, interest in charting - the list goes on.
However at the end of the day there needn't be rhyme or reason to why a holder or non-holder is posting on a stock - because this is a stock discussion forum not an "echo chamber for holders forum".
Take on the issues raised rather than falling into the pitfall of your peers who spend their days attacking other people.
MNS Price at posting:
38.0¢ Sentiment: Sell Disclosure: Not Held