Interesting, the difference between SegWit and BU signalling is lower than ever. They are exactly 6% apart.
I wonder if that means that rising support of BU is finally over. Will we see reverse trend and SegWit will win soon?
There is still problem of too high numbers needed for SegWit's acceptance though.
If you look (by sliding the mouse over the orange bars) you will see that there are both Segwit and BU blocks mined several big mining pools ! This is in agreement with my thesis that mining pools just want to keep status quo, and want to keep both antagonist forks away from consensus. Which is exactly what immutability is about.