I don't think Bitcoin culture has fundamentally changed all that much.

When I got involved back in 2012, the first thing I got involved in was the blocksize war, with my famous Feb 2013 post How a floating blocksize limit inevitably leads towards centralization.

The spirit of that post - the culture leading to it - was to create a decentralized currency that anyone could participate in fully. Our #1 goal is still to do exactly that.