Comment by stormcode

They mention attempting it in the post. It didn't go anywhere one time, as it was a minor, and the other they don't have anything to tie the attack to a person. This is a pretty common problem for small games/services that experience outsized problems like this. It's incredibly time consuming to deal with and legal action typically costs money. If you want to go after someone and you think you know who it is you need a lawyer and you need to get a case into discovery so you can get a lawyer subpoena power to contact ISPs and such. Even if you have their real IP-- reporting to police, or ISP can result in no action, even if you put in a lot of work.