O"Reilly may assume that the bump in his ratings is support. For the most part its not. It's rubbernecking. I suppose alledged pervs are fascinating.
I didn't know that his ratings were up...but I agree that it's for the reason you say.
I know that I won't be watching again...and not because of the alleged harrassment because I don't think it actually happened. I think his schtick has been overdone and he's not fair and balanced. He's too show biz. Boring.