Maybe of HTML but certainly not of content in general. People post Instagrams, TikToks, Tweets, Youtube videos, Unity Games, etc... I'd argue content creation is up, way up. It's possible just not content that personally interests you (or me)
I think there's even an argument. During the heyday of the "Read/write Web"/Web 2.0 which was supposedly in part about the mainstreaming of content creation, the reality was that relatively few people had blogs etc. (and there were far fewer podcasts in the first wave than today).
Is there less long-form thoughtful writing and personal websites today? Possibly. Certainly it's a much smaller part of the overall mix. But there's more content (both quality and otherwise) than ever.
