It's pretty naive to believe everything that's posted on Reddit or another dubious forum. I could also post my "masterplan" there

Or some big blocker could post "Blockstream's evil masterplan". Would you believe that?
It's even possible that this is really the plan of some hardcore big blocker, but not of the whole NYA group.
And the translation is really bad, sorry.
I am not supporting Segwit2x anymore, but not because of these conspiracy theories. It's because its success probability is extremely low and Bitcoin would suffer the loss of manpower if most Core developers leave it. So it's rational to support Core, for now - and keep your private keys from the fork date until Core has definitively won.
But it's not that easy after a hard fork to "take over" the coin. Core could simply post a 2x compatible client and then continue with their own roadmap (accepting grudgingly the 2x/8MB weight limit), as I wrote
here.