I'm not sure what timeline you're exactly trying to prove or disprove. It makes sense to me that he'd make a post describing a call with Reddit, after he had a call with Reddit. He doesn't have to describe exactly everything he describes, but fact is: Reddit is claiming he is costing them 20 million dollars per year, he suggested a buy-out for half that. You have to actually prove he tried to threaten them, because the non-threat explanation makes perfect sense - because of course the developer of an app would make posts about the status of communications regarding these changes!

If I'm missing something you're alluding to in the beginning I'd appreciate an explicit explanation :)