If you think this is a good idea, go ahead and fork the client and fork the blockchain. Then see who and how many people agree. We'll have two coins, bitcoin and some other alt-coin. Everyone who has bitcoin will also have the same number of coins on the alt-chain.
This type of thing has been discussed many times and
none of the people who think this is a good idea ever do anything. For heavens sake, all the people who want to ruin the fungibility of bitcoin just go ahead and make the patches, fork everything, and release them once and for all so we can put this issue to bed with everyone either thinking it is a great idea or a terrible idea.
I think most people will be dumping the alt-coin and buying more bitcoins, but actually doing it will give hard evidence as to who likes it and who doesn't. So, please just start coding and release the alt-coin already.
I don't want to block the coins, I want to watch the US government make the terrible mistake of trading precious BTC for worthless fiat this early in the fiat->crypto transition, so we can all later laugh at them for their folly.
I want the clever folks who buy these coins to make out like bandits at the FBI's expense. This will be a "stupid government" joke for the rest of history.
Good one. I prefer to make fun of the "government" for thinking that they own the silkroad coins.
The blockchain is neutral. It is up to payment accepters to filter out Bitcoins.
This is not anymore possible after the coins circulate again. Now is the time.
How boring. This has already been discussed (at length, multiple times) and it hasn't happened. Get some fresh ideas.
Nothing is as powerful as an idea whose time has come, Sir Victor Hugo 1852
The organization you speak of has those coins because the operator of the marketplace was unable to protect themselves even though fantastic tools were (are) available.
How about starting a campaign to teach people to protect themselves instead.
You should start this campaign which I will support. It is your idea. People make mistakes. This is their nature.