Why would you image an author would not care that their page "suck on mobile". If they are posting/sharing their stuff, they more than likely want people to consume (and spread/reshare it). Both being poor experience on mobile and non-discoverably, hard to search for impact that.
I can easily imagine an author who rarely uses their own mobile page except to make sure that it works at all; or who knows it's not great, but doesn't realize just how annoying it is; or even who has never looked at their site on mobile, ever.
