The guy doesn't know what autism or aspergers is.  He incorrectly identifies anyone who criticizes him as having aspergers.  That's like saying all of 4chan is aspergers just because they're weird and odd.  He's old and doesn't understand the younger generation, especially the younger people on the internet.  There are plenty of adults who act weird and quirky online just because it's fun.  Does he really think there are that many aspies reading his blog?