Not crazy - if the OP is still reading this thread.
Just before the X-T2 came out I went from:
D3s, D800, 24-70 (non VR), 70-200 VR1, 20mm 2.8, 50mm 1.8, 85mm 1.4, 70-300mm VR, 28-105mm, SB600, SB800, SB900
and have replaced it with:
X-T2, 16-55/2.8, 50-140/2.8, 14/2.8, 27/2.8, 35/2, 56/1.2, 1.4x teleconverter
It all started when I bought my wife a used X-T10 and was surprised at the portability and the quality of the images. If you ignore the 27/2.8, which I bought for the X-T10, then I managed the complete swap without having to part with too much money.
Things I like:
The size - I've taken the gear more places and taken more photos;
The SOOC jpegs are great;
The lenses are great, the 16-55 does not make me miss the 24-70 and the 50-140 is definitely a better lens than the 70-200, the sharpness of all the lenses is surprising, the 35/2 is a really nice prime and I was shocked at the 56/1.2 when I used it as I was so used to the 85/1.4 - all the glass has exceeded my expectations.
All the mechanical controls and dials.
The EVF is great (never though I would say that).
Things I miss:
Not enough to want to go back - but the FF sensor of the D3 line was special - it's just physics that you are never going to match the FF noise levels with a crop sensor - but X-T2 is more than good enough.
Nikon focus - it just always worked - but again the X-T2 is not bad, and manual focusing is loads easier with the EVF on the X-T2.
I don't shoot any paid jobs all that often anymore, but if I was still shooting weddings regularly then I would have definitely moved to Fuji, mainly for the discreteness and reduction in weight - it was that realisation that was the final decider for me regards switching.
Hope that helps,
Matt