I think a lot of devs are both more comfortable with bare-bones tech; and less trusting of complex software. Just as chefs all seem to have some dish they will never, ever order because they know too much about how it's made... we know too much about software to believe the marketing. We know more moving parts means more stuff to break.
So when we do pick something complex, we go all-in to make it worth the risk. This is why you can't pry a developer's favourite text editor out of their hands!
A recent discussion about photo management software showed that many of us just put our photos into directories in (cloud storage of choice). Because that works unlike, say, iPhoto - which tries to make things so "easy" that it creates an unholy nightmare you can never escape or get your photos back out of.
I do know lots of devs who use evernote though. But personally, text files in a folder in dropbox work perfectly well.