I think rather than less sleep causing worse blog posts, both having a common cause is a more likely explanation. For instance stress, or spending too much time writing careless blogposts instead of sleeping :P
As an example: consider the datapoint "Turning Down the Nobel Prize"[1], which appears to be the pre-launch announcement for their startup to literally cure cancer, drops a bunch of names, then implies they deserve an instant Nobel prize -- but not before another personal hero and pioneer gets one.
This data may be useful for OP in their own diagnosis and self-care, but is still n=1 in one very important dimension relevant to the rest of us.
And I'll go one further than 'weird attempt'- I think it's funny, at least enough to justify its length.