I think we need to stop blaming Steemit Inc and/or Ned for stuff like this. Do we want them to do everything? In fact there is already an app that you can use to tip users with steem on twitter that was built a long time ago.

https://steemtipper.com/

This is the anouncement posted over a year ago:

https://steemit.com/steem/@followbtcnews/steemtipper-is-taking-off-tip-steem-easily-and-safely-on-twitter-and-social-media-platforms-with-no-fees