>by whom?

Not sure, people who care more about a narrative of justice than technical hacks.

>When? Depending how far back you go, The hacker culture attracted a very specific type of person. It was self-selective, so they themselves had similar cultural norms.

I guess that the startup scene made us popular, which tends to attract the sort of people who like guidelines, rules and control.

> There are going to be growing pains, but in the end, diversity is a good thing, right?

I just do not see why we need rules. Specially rules we are not expected to bend.