Just watched the youtube video and wow...dude that made this is clearly a psychopath and all because someone undercut him on the market. The amount of data they get from a single click on a character and then the ability to add them to "favorites" is just beyond words. They get notifications for any type of change the person does even down to customizations (which I am assuming is Name changes and Appearance). It's also rather interesting that the stalker while clicking away on different characters and being downright creepy can set their own characters to private and make themselves unsearchable on the app. So I am not sure that even having the person blacklisted as it currently stands will help. They can still see you but you cannot see them. The only thing they can't do is have words with you..but who needs words when they have all this? The passive aggressive and destructive nature of this plugin if used by anyone should be detected and have them instantly banned.