I edited my comment though to reflect that, yes they are oppressive as they do shadowy things with the police and kill people. There is probably a mix of maybe-unregrettable (killing dangerous religious extremists political opponents) and regrettable (killing anti-islam feminists) events.
Nigeria is an extremely violent society. Think Mexico.
So police violence, if regrettable, is pretty much a corollary.
Sorry but it does not seem weird to you, that among all the dictatorships on Earth, only the scammers' paradise Nigeria has adopted cryptocurrencies at a large scale? Why not Cuba?
About feminist activism: okay but then what about in other muslim countries, where the problem is similar? Why is it in Nigeria that the adoption is so big?
My point is that these citizen organizations could have just used VPN+PayPal very easily for their activism, but it's because BTC was already mainstream among the omnipresent scam businesses, that they had the idea to try.