There is a lot in here I don't agree with, but since this is about Biden and not what you've been doing on this board for "decades", I'll respond:
What are these huge number of "story changes" that you see? The main one I see is her changing her account of the severity of the assault. That happens frequently, whether due to unconsciously repressed memories or intentionally because we condition victims to feel embarrassment for having been assaulted. This is something I've personally observed, and it does not mean the assault didn't happen.
The main reason I'm inclined to believe her is because there is way more downside than upside for her coming forward. You seem to think that she is campaigning for Bernie, but there is no way that Bernie is getting on the ballot no matter what happens to Biden-any ballot change at this point would be an establishment Dem move.
To my original point-do you think the "I believe Tara Reade. I'm still voting for Biden" NYT op-ed helps Trump get elected? I would argue it does the opposite, or at least it can.