@dansup i think tumblr should lean harder into indieweb stuff than into activitypub tbh -- i feel like using activitypub for microblogging is not exactly ideal. i look at things such as "rss to activitypub" bots as kind of misguided because you should just be able to follow the rss feed. activitypub should be about delivering notifications and user activity. consider how Announce works, and then think about how it doesn't map onto tumblr, but microformats u-repost-of works fine up the chain...