If you create a new app in facebook's dev portal, you'll have to ask for the 'publish_actions' permission. Further, you'll also have to provide detail explanation for why you need this and show a screencast of it following their policies. It even asks for a demo account...

Reading, https://developers.facebook.com/docs/apps/review/prefill

Shows that you may not pre-fill any message content and they are explicit about making sure that the content being shared was manually entered in by the user.

Clear bufferapp violoations.

1. "Pre-fill the user message parameter with any content the user didn't enter themselves, even if they can edit or delete that content before sharing. This applies to posts, comments, photo captions, and photo album captions."

2. "Prompt users to click or tap a button to auto-populate the user message parameter. Your app can suggest content, but the person using your app should choose to manually copy and paste or type that content themselves."

Anyone know on what technicality bufferapp is allowed to do this?