This is really fun! You can really tell that it was written by someone who's on tumblr a lot :P
The one thing that kinda brings it down for me is the lack of a proper UI - combined with the animations every time you switch between menus, it feels sluggish and a hassle to switch to a different menu to check information (for example, when going back to tumblr from the "check people to invite" screen). This isn't helped by there not being much visual distinction between blocks of text, so if you're scrolling up trying to find information from a post or something, it's hard to figure out which block of text could have it.
I know a lot of this is because of Ink, not any of your choices, but imo that means using Ink might be bringing the game down. And don't get me wrong, it's still a great game even in this demo state! It's just a little frustrating to navigate.