"Facebook has developed a large-scale change in Fan Page authority. Now Facebook allows other Admins to erase main Admin (Owner) of Page. The advantage of this step is if you are an owner of a company and your employee create a Fan Page for your company, you can eliminate him as Owner (Main Admin) of that Page. The disadvantage is, if you built your own company page and suggest in other admin, you will face the same thing. Hence it is your choice to keep whom Admin or not."