I remember the day AOL opened the floodgates. I wouldn't call it the dark ages, it was a mixed bag, but in the end, giving the public access to the Internet cannot be considered worse than what was before.
There was another big transition... the day the USA passed laws allowing the Internet to be used by corporations. Before it was gov't, education, and military only. That was an even bigger deal, but I wouldn't call either the time before or after the dark ages.
Up until recently, things just got better and better with time. Now not so much. Big Internet companies are controlling public narrative and swinging elections in their favour by controlling who says what and how. The state has unprecedented spying power, and in many previously free countries (such as the UK) people are getting knocks on the door and are being sent to prison for saying the wrong political opinions online. Nothing like this has ever happened before, and it's far worse than what has come before. Now is the dark age of the Internet.