Most users, like Theymos do not use or care so much about social media, thus Bitcointalk forum social media accounts would never have so much traffic, and sooner or later may fade into oblivion. I think quite a lot of people stopped being too active on social media when they joined the forum, it happened to myself, and i'm pretty sure i am not the only one. The forum is more like everything enmeshed in one, so anything outside the forum might never be popular amongst the Bitcointalk community.
This depends on how one takes it, because to me i see the forum as being social itself bit not only that it has been a source for an accurate accountable information point that educate and got members informed in a particular trends of news around the globe including the major target on bitcoin discussions,the kind of opportunities that lies with this forum is incomparable to other social media where no etiquettes is been kept or maintained, this forum is a one big community that is reserved as a citadel for information and knowledge and been social as well rendering diverse opportunities.
Forum is indeed a social media too because exchanging information. The only difference between forum and social was the way you interact on someone. Forum is topic basis which user attract to engage base on topics listed while social media mainly focus on personal things to engage interaction.
Imho Social media is just the evolved form of the forum. Some forum already catching up the feature of social media like reddit.
Bitcointalk is really the best social media for Bitcoin discussion if you want to see a more serious discussion and less troll/scammers that randomly posting on some post or comment. Twitter is garbage in terms of crypto discussion.
... "behind" on the "Social Media" Scene. I think it's for good reason. This was satoshi's forum first. He would not like social media I think ,but just guessing. It's not really needed anyhow, people find there way here through many different ways already. I have helped quite a few people from ebay find this forum, I know that much... 