Many people here have read the same case (OO as intended by AK and Smalltalk being not about Objects but about messaging) made in different outlets from Alan Kay over the years (I've read it over 10 times in various forms, including 2-3 videos).
It has also been posted on HN for over 10 times, and a few times Alan Kay himself was commenting here too.
So it's not like everybody needs to read this particular "TFA" to jump into the discussion, or that it's that bad if they missed some specific reference you've made to the content of this particular article...
Then don't. There are plenty of other submissions on HN, and if you don't see any you find worth discussing, submit some you do.