I guess the hardline approach of ‘only backlinks’ could be considered a feature actually. It would mean Mega Social Corp has no real knowledge of your content, just the links back to your site. So you put up a barrier to your data being opportunisticly scraped, but you still tap in to the social network effect of the big silos while it’s monopolised there (assuming the awkward format doesn’t stop people from reading what you post…)
Fixed an issue in shpub and one in Bridgy WP plugin and now got Twitter syndication via micropub via my WP site (kind of) working! (Kind of, as the note that appears on Twitter is just a link back to my site for some reason. That’s the next issue to look at…)