[Late game on insane dif is far to easy. (may contain spoilers)]

I cant say how much stats should be adjusted by. however I will say that playing on insane does not feel insane. I would say it feels like hard so I would like to see a buff to these difficulties in the future or maybe even harder difficulties.

[MAD scientist (no research ships/satellites)]

Same on our world, lack of mad scientist probes since last patch along with increased empty sectors that show mass.