Automatic protection for Main Page It would be straightforward to write a bot that  protected all images on the main page adding TemplateMprotected and  unprotected all images with TemplateMprotected that no longer appeared on the main page Feature  would be genuinely useful and save editors work However if editors came to rely on feature  then that would introduce a risk because there would always be a gap between an image appearing on the main page and the bot protecting it A clever vandal could vandalize the image in that gap And worse the bot would end up protecting the vandalized version of the image I suppose the bot could attempt to detect vandalism like that but you can see how complex the process could become    May  UTC