Please don't do this Dooglus.  It will forever make clam nothing more than a token for JD.  While some argue that it is already that, at least it has the possibility to become more.

The developers designed clam and should stick with that framework unless there is a real threat or exploit.  Everyone knew going in that something like this was a danger.  Maybe if you thought it was one of the developers themselves that was doing this, e.g. one of them sent 10 doge to a million addresses, then it may make sense to do something like this to protect the community, but even then it would cause the coin to lose one of the main attractions it had to you using it at JD - New users probably already have some.

I do really appreciate you thinking about this though and your involvement in the clam community.  Just-Dice is great.

Some of the other options may make sense, but it's not like this was not a recognized possibility going forward.  I think Gambling Bad may be on to something with the buy wall idea.

EDIT:  Also a question.  I thought the dig whale had dug all of his clams when he imported his gazillion addresses into his client.  So reducing the amount of clams per dig wont matter in this case, only in future cases?