That was a joke, well, a half-joke.
I think it is going on - I think a lot (but not all) of altcoins are being produced by a ring for the purpose of hoarding bitcoins.
And that method doesn't result in buy orders, not from them.
Eventually when more people catch on, the game will be up and we will see them start selling bitcoins for cash as they move on to their next scam.
And bitcoin will drop in value.
A perfect time to amass more!
Even if they start selling, there will be a pretty big backing, even if the price does drop. They'd have to be selling a lot of BTC in order for it to be serious, and even then there's a lot of support at the $400 range.
I'm not saying that your suggestion isn't true, it's a lot more accurate than some may think.
I see what you mean, and I do believe that it is a likely scenario. It will be interesting to see what happens.