For me it looks like inverted survivorship bias. You won't hear from people that succeed so you don't have way to count them. People that nag or email author mi

For me it looks like inverted survivorship bias. You won't hear from people that succeed so you don't have way to count them. People that nag or email author might be even in some special group of 'someone please make it work for me', I cannot imagine mailing author of a book. I do not believe that such group to be really big, maybe it just visible more than others. Like 'plz give codez' on StackOverflow. Buying a book or reading blogpost does not entitle you to anything more, like wasting author time. Time is most valuable asset and he already spent it on writing book. If that book is crap you can rate it on Amazon or something but directly contacting author?