I don't think changes to the coin should be considered. It's no surprise that there are some people with access to a Satoshi-level supply.
With a half million clams, someone can crash the price temporarily. However, as has been mentioned, this isn't the most profitable move.
Compare it to the block reward. With 1 clam reward being produced roughly every minute, there are roughly half a million clams produced every year. If the new big holder decides to sell his supply over the course of a year, it's similar (in terms of supply) to the block reward doubling. In that case it's reasonable for the price to drop by half. If the new big holder decides to sell his supply over the course of a month, it's similar to the block reward increasing to roughly 13 clams per minute. In that case it's reasonable for the price to drop to roughly the 1 mbit level.
Incidentally, while this is obviously bad for the price, it may ultimately cause Clams to climb higher on coinmarketcap.com, since for some reason coinmarketcap.com does not count still-buried clams in the supply.
Both creative and xploited remember me arguing with them long ago about maybe suspending "digging" at some point in the future. I have no recollection of the argument, but apparently my position was that it would be unfair to suspend digging, and I convinced them both of that point of view.
I can see both sides: it's understandable that the people who already "dug" their CLAMs would want to suspend future digging so that their own share of the CLAM supply isn't diluted by newcomers. But it's also great for CLAM that we can tell newcomers "hey, check CLAM out - you probably already have some". We've seen people come to Just-Dice to dig their CLAM and stick around as part of the community, purely because they were able to claim "free money" to get started with. I don't think there's any doubt that CLAM is only as well known as it is today because of the widespread initial distribution. Shutting that off now turns CLAM into "just another shitcoin" in some ways. As I see it, the initial distribution is really what sets CLAM apart from the crowd.
I'd be interested to hear what others have to say. I've seen quite a few people in the Just-Dice chat arguing that the 15 million "undug" CLAM is a huge liability, and makes people hold back from investing in the coin.
IS the sky falling? Again!!!
As long as this is not an exploit, I have no problems with the clams being dug. We shouldn't change the rules in the middle of the game.
I would bet 80% of clam holders would want to freeze digging, just to hold their stake and value. I'm in the 20% club, that says let it ride....
Once this person finishes digging/dumping, the price will stabilize for a little and then continue to rise. But there should then be more clams on the market to help the growth without it getting to out of hand, to quick.
Now's the chance to by fresh clams, cheap....