There has been enough information posted online that points to Tillkoeln and how to take him to court. If the member was serious about wanting to join any lawsuit, the forum was not the only way of announcing it. He could have used his initiative in other ways too but either way I wish any victims success if they try to take scammer Tillkoeln to court.
Hey, im from the EU and im willing to join the lawsuit.

Im not hoping of getting any money back, but Tillkoeln belongs to the jail.
Look at some of the previous posts, some of the members were also planning it, or maybe they have already done it. Some of them also have the personal data of this scammer, which makes it easier to file a report.
I'm not doxxing anyone here because it's against the rules, even if it's about scammers.