I agree woth ypu fpr the most part on this mass adoption issue where they have to increase their server capacity to be able to have more users. But on the other hand, maybe that's not an issue. Just like Reddit, Steemit is only embedding videos and pictures from YouTube and other websites. They are not really keeping them anywhere which means that all that they need storage for is account info and text. And those things barely take up any space at all. I believe that other things like their UI and user friendliness are things that should be of higher priority. Or what do you think?