Who is common between the two groups?
Do MPEX and GLSBE have any common people, too? I'm sure to someone who didn't take the time to research they would seem to be "basically the same group of people."
Since we're talking about "people who didn't bother do the research", did you read the comments on the first link in the linked post? They pretty much cover your question, apparently it's been asked before.
This leaving aside the rest of the nonsense.
They all use bitcoin ?
They are all in the US ?
Above question to you, too. Didja read or too busy posting?