I can understand that people feel like that, but if a similar scenario unfolds, then use it as the best possible opportunity you'll ever get to buy as many coins as possible.
The thing is that there aren't that many coins left to buy for the general public, and in case the market happens to decrease significantly (which I don't think will happen), large pockets will buy up even more coins.
Direct result is that with less coins in circulation, the market is far easier to increase. See it as a shakeout of weak hands before the next rally comes up. People shouldn't sell any of their coins.
Selling coins is like rewarding large players for their manipulation attempts. Instead, use it to buy more coins as I said, which is exactly what I'm doing.