[oneeyedpigeon]

> One issue is that there is no such thing as "the default platform for discussions"

Isn't this what the various linkback mechanisms tried to solve? It seems like the ideal solution: let anyone comment wherever they want, from a tweet to their own follow-up blog post, and connect them all via automated notifications.

[rchaud]

It was, but the explosion of free hosted blogs quickly led to linkbacks being 90% scam sites instead of genuine responses.