As someone who works on a Social Media dapp (also a game marketplace) I don't think blog based rewards are valuable enough (now or ever) to successful/business-minded content creators to leverage such high inflation from Hive into them.
Moving this aspect over to an SMT is intriguing and has great appeal and the Hive token should be more general and less social media specific. Empowering business minded communities with SMT is also of interest. They can perhaps still be used to help sort posts algorithmic-ally and purchase promotions etc and hopefull exchange quickly and easily for Hive or other tokens.
Also for a social media app maybe the best thing that could be done is to focus on all the other things this blockchain can do... so less focus by developers and hive evangelists on the social aspect is actually better for social dapps. Besides, It should be up to the apps to promote their own features and successes... while being highlighted from time to time by those showing the diversity of what can be done on Hive.
I don't know all the angles of this discussion and am listening to see which direction my thoughts should go but those are my thoughts as of now.