To be fair, with Tumblr there was just no forward thinking plan. The first thing they should've done was consolidated content. Thus if someone uploads a picture

To be fair, with Tumblr there was just no forward thinking plan. The first thing they should've done was consolidated content. Thus if someone uploads a picture that's already on the server, it should automatically become a reblog. This would've promoted greater content creation and thus promoted the harnessing of content creators. Everything else falls into place on that solid foundation. Promoted posts, inline advertising. It would've all been there for Tumblr to cultivate in a manner which users can embrace. Instead the idea seems to have started out as a micro-blogging system that's grown into a full-fledged blogging system but seems to lack real direction and instead seems to on the fly to meet the needs that suddenly develop from usage statistics and shoehorning.