The guild leader decides who stays in the guild and who gets kicked out. When you create a new guild, you automatically become its leader. If the leader leaves the guild or is inactive for more than three weeks, the leadership is transferred to the guild officer (if there is one).
If the officer is inactive too, another active player with the highest delta in the guild will become the new leader.
Once you have lost your Leadership, you will only be able to return if the current Guild Leader gives you their admin rights.
Please note that we do not return guild leadership that was transferred by mistake. We don't think it's fair for developers to interfere with the gameplay. We've also added intuitive confirmation steps to prevent accidental transfers, so if you make someone else a guild leader, it will be considered a conscious decision on your part.