I often think about how some random person’s decision that many years ago created my entire family line.
I mean that doesn’t really require your grandpa to die for your family line not to happen. In many cases something as simple as taking an earlier bus or leaving a little early so your grandpa doesn’t meet your grandma would also do. In fact it is sort of freaky how a little one minute change in your schedule could potentially change the lives of dozens or hundreds of people. Looking left instead of right just as someone sneezes might put you in bed for a few days, stepping on something at the wrong angle might screw your ankle for days,… and those changes quickly spiral out of control in everyone’s future timeline for all the people you might interact with.
A lot of those community forks on Reddit were more related to the original communities growing too fast and then losing the original feeling than to powermods too (not all though).
Ruby is used in some large, older existing projects (e.g. GitLab, Redmine, Puppet) but my impression is that a lot of them do not have very much active development of the Ruby parts going on any more.