Not quite sure why I find it strange that Instagram use Tumblr for their blog platform…
Perhaps I thought they would have moved to Medium by now. Or use Facebook notes.
Or at least use a responsive theme:
Tumblr in a browser is an unpleasant user experience. Especially on mobile. The continual prompts to open AND get the app are web site amateurism.
So at odds with the user experience of Instagram in general.