You should re-read. He says "any new threads created will be considered spam", he's not referring to the current ones as spam.
He notes that they get lots of reports about those being spam already.
That's it. Doesn't say they see those currently up as spam, and doesn't call the topic itself spam.
He's correct in referencing Ion, because there hasn't been an official official announcement on a change from that thinking - and even if there were the CM themselves wouldn't let that out in a ticket response.
I think some people need to re-read things before rushing to post em as some "aha gotcha guys!" moment.