RE: 100,000 USDC stablecoin has been blacklisted

Well, the problem is that you run into problems if you do or you do not.

Of course people want to stop and punish thieves... and so a blacklist.
However, such a thing always ends up with some wrong people on the list
and if too many are accidentally put on there, then the coin/token may be deemed too uncertain to work.

Imagine having 0.1 tainted coin sent to your address and then you address being locked.

So, inevitably any coin/token/smart contract will kill itself by creating a blacklist.

However, the opposite is sorta true too.
Too many shady deals and people lose respect for the coin/token. (however, i have seen this just ignored and lived with: such as The US dollar)