I think there can be a fallacy of change = progress. SN has landed on a goldmine in terms of easy, minimal UX that just works. I can look at it on a 24" monitor or an iPhone 7, or whatever, and it just works. It blows Bitcoin reddit out of the water. The risk of changing that is extremely high.

I reckon content discovery (recommended posts etc) and absorbing more of the millions of Bitcoin reddit users is the growth vector to explore here.