I think the google ban is being used as part of the existing FUD around Mt. Gox.
I believe so, it could be the Mt Gox talks + Google bans that caused people anxiety and slowly sell their holdings
and that was spread by a handful of people

so that they can buy bitcoin with cheaper price
I do think we'll hit a bottom soon because there doesn't seem to have been significant enough news to cause this large dump.
I don't understand this part.
Why would there be a dump if there is no significant news? unless I misunderstood that sentence
IMO having no news on bitcoin would only make bitcoin price to stabilize, not dump or pump