If its true (a lot of fake posts on social media) there is not a lot they can do. At the moment, support for SegWit2x is 83.33% which is not great but still is pretty good. It will happen.
It's still just signalling, which at this point doesn't say everything. I am quite sure that before the deadline a few more miners will leave the ship, further lowering the overall support, but it won't have much of an impact in the end. Realistically speaking, I have no doubt that a chain split will take place due to the ongoing greed. These forks are just another aspect of the greed we have to deal with now ICO's are slowly but surely being taken care of by governments. There is far too much money involved into this fork to not let it come through -- it will happen for sure.
