Hi @itsIniX, Thanks for asking for clarification on this. You are permitted to allow your app to follow a specified account on behalf of users ONLY if the user has granted explicit permission. Simply authenticating into the app is not permission enough but the confirmation window you described above does suffice.
Per Twitter’s Developer Rules of the Road (https://dev.twitter.com/terms/api-terms): Get users’ permission before modifying their profile information or taking account actions (including following, unfollowing, and blocking) on their behalf.
Let me know if you need further clarification.