I honestly think that having alternate implementations let people go back to when they were written; They are important. The common understanding would be "Hey

I honestly think that having alternate implementations let people go back to when they were written; They are important. The common understanding would be "Hey, this is how it was implemented in the standard, and it totally caught on because it made sense and everything else did not." But I do not believe in those arguments. I often look at alternate libraries/implementations for readability or for lost-in-time features. There's a reason I read EASTL and BSD code. It makes me refreshed, understand nuances better and more importantly, know what I've been missing out on.