> To be specific, fully 88%(!) of miners are actively signaling support for the upgrade plan known as "segwit2x".[1]

Unfortunately, signaling is more like a bumper sticker you slap on your blocks. The rules you deploy and actively use don't really have to conform to what values you place in the blockheader. It's supposedly a way to communicate your intentions regarding your future enforcement of certain rules...

https://www.reddit.com/r/Bitcoin/comments/6ns1o6/antpool_jus...

https://www.reddit.com/r/Bitcoin/comments/6ntfhd/superb_segw...