I am curious whether there are any organizations that are actively trying to monitor bitcoins from illegal sources.
I understand that 'when done properly' you can make bitcoins practically untraceable, but I have just witnessed a rather amateuristic attack where people were suggested to transfer funds to 3EaRJ5p172iLYJKH8YYnPYFw9pKgxYg1sj and I wonder if anyone is trying to do something about these cases.
Just one partial solution I could think of would be to alert exchanges or vendors when the bitcoins are traced to them, so they can hold the funds untill the situation has been cleared up.
I am not asking whether my proposed solution makes sense, but I do ask if there is any organization/solution that structurally tries to make life difficult for bitcoin criminals
So far I have seen a lot of answers explaining you cannot catch all criminals, but I would be surprised if we cannot even catch some.
I also found a reference to nomoreransom.org but ultimately that just referred me to the local authorities, which makes me doubt there is a structured approach behind this.