Those 30K Ask walls, and then the flood of buying interest that bought it out, was almost certainly the same pair of hands at work....trying to engineer a high volume bottom or something like that. If there was a whole pile of capital waiting to pile into Bitcoin on the first sign of a trend reversal then it might have worked, but I would suggest that it doesn't seem to be working at all. I think Bitcoin goes down lower from here, without going much higher beforehand, if at all.
I fully agree that the 30k whale intentionally drawed a high volume bottom at 275. Somehow showing that the accumulation phase had started. And accumulation phase could last for months...
Revisiting 275 by mid December is highly probable.