"Added cost scaling to all buildings"
I don't know about others, but for me it's that change to make me rage quit the game...
I played and loves a lot of idles, but when i see idle/inc w/o this i feel it far better, and when next update makes cost incremental without any reason it's makes game feel bad just as fact.
And again, I don't criticize this feature itself, just want to tell you about this effect with some peoples(at least one), when you introduce it this way...