@koen_hufkens @pluralistic @academicchatter I've most often heard the phrase "Benevolent Dictator For Life" used to refer to founding leaders of open source software projects, and in that context there is a built-in mitigation of the dangers of a BDFL: freedom to fork.
At this point my best option is to quote myself, so... no point being embarrassed about it I guess! Here we go:
The potential for forks is the reason there are no true dictators in free software projects. This may seem like a surprising claim, considering how common it is to hear someone called the "dictator" (sometimes softened to "benevolent dictator") in a given open source project. But this kind of dictatorship is special, quite different from our conventional understanding of the word. Imagine a ruler whose subjects could copy her entire territory at any time and move to the copy to rule as they see fit. Would not such a ruler govern very differently from one whose subjects were bound to stay under her rule no matter what she did?