In past cycles, Trump's handlers managed to get him under control for the last few weeks before the election so people would see him as "more normal" than he really is.
That's not the case this time. I think he figures he's going to lose so, "What the hell - I went normal last time and just missed, but then the crazy bit got me close with Jan6, so let's just go for it. I'm going to amp it up to 12 and see if I can get my vigilantes to carry me across the line..."
IDK, but I'm not going to simply dismiss his weird shit and call him nutty when I know there's always been a method to his madness.