You really think that anything he said is so secret, serious and important that his account was deleted? My hypothesis is that the guy decided that he’s a genius trader and he does not want to share his deep insights - so he deleted his account. Or someone on WSB was extremely butt hurt and pestered him - so he deleted his account. Or maybe something he said could potentially dox him - so he deleted his account.
It is possible, although: "Every call he made was right except for Friday even though he was technically right because we dropped big. On Friday he told everyone to buy calls at 255, then we hit 251 so it wasn't looking good but that obviously was another great move if you held to 270 at EOD and sold off." Here is an idea: What if he got a really good offer from a HF or high net worth person? Of course they asked him to stop posting and sharing his ideas for free. Here is his last post: