A quick Google search told me why. They'd been attacked! As their blog explained:
"Criminals are attacking feedly with a distributed denial of service attack (DDoS). The attacker is trying to extort us money to make it stop. We refused to give in and are working with our network providers to mitigate the attack as best as we can."The post went on to say that as soon as the attack is neutralized they'll be up and running again. I'm glad Feedly's not giving in to the 'bad guys', and I hope it doesn't take them too long to come out on top.
Five years ago today: No More Indoor Dust Storms