Chill!  This is VERY explainable.  Some of these guys really know a ton about bitcoin and how it works.  They are all very seriously pissed that Mastercoin - albeit not perfectly elegant - is a damn cool idea that they didn't think about.  Further, and this is the very hard part - now Mastercoin is very well funded.  These guys think they are far above Mastercoin technically and they are furious that they didn't find a way to raise $500,000 to advance their concepts.  Rather than help Mastercoin, they are going to beat it down from every angle - and try to take money away while Mastercoin grows.  Open source projects get F'd everytime by ego. 
Press on.  You don't need them.  You'll find your way clear of these minor obstacles and very soon will be far passed all their pussy fussing.  You don't need their inputs.  Their inputs are corrupt. 


Jealousy often means you've got something good going on.