In order for the MPAA/RIAA claim that copyright infringement causes large monetary damages to ring true, we must see profits increase in these industries.
If profits do not increase, then Megaupload did not impact profits.
Not necessarily. There are long term trends, cyclical trends, write-offs, etc. I don't see how one can look at a single indicator, profits, and then have insight into detail. It's a rather tenuous assertion.