I don't agree, there has been one great increase in other places for discussions that did drain the audience and the relevance of the forums. I think even Twitter had that impact, while it is not any forum it does have a threaded discussion by topics and today it became a place where when something happens in the world, twitter is the place to go to get info and a quick and simple layer of discussion.It doesn't have as much to do with outdated technology or not enough innovative technology as it does with a relative handful of big players having a monopoly on most kinds of content.
Xenforo for me needs more social features, not as turning it into any Facebook, but improving and iterating on the social features it already has, from the profile feeds to the neglected Following system.
