What the heck is up with the StackOverflow custom tag? There are over 2k posts with this tag, but this tag doesn't provide any useful grouping. Topics range from Android, Doxygen, SharePoint, jQuery, you name it. It would be virtually impossible to provide the tag's wiki with any meaningful text. I've noticed the existence of the tag seems to bate users into "building a phrase" out of tags e.g. wcf custom xml serializer which doesn't seem like a healthy usage of the tag system ("custom XML serializer" is clearly title/body material).
I can't believe this tag has ever helped any StackOverflow user find content. It just feels like noise in the tag list, as such I'm proposing the tag be removed from the system.