I hadn't used it for a long time, but in the back of my mind I always thought "hey, I've got some stuff in dropbox that was important.
Then they sent out a notice, to an email that I no longer check regularly, that if I didn't do something by some date I'd lose it... Now I have no incentive to ever log in ever again.
I had lots of unpleasant experiences with Dropbox when I was travelling in foreign countries back in 2011-2012, so I got rid of Dropbox not long after.
I found that, for me, it was simpler in the long run as well as more secure to implement my own file server accessible from anywhere in the world.
Dropbox is infamously full of weird edge cases, uncertainty and various sundry other weirdnesses. Lots of people feel that they never quite know where their stuff is, how the versioning works etc.
Then they sent out a notice, to an email that I no longer check regularly, that if I didn't do something by some date I'd lose it... Now I have no incentive to ever log in ever again.