Darn, we already do all of that.
I used to use tracking software, but there are websites now that you can copy+paste the IP address into to trace people now, so no need to install software on our machines, unless such software could be embedded into the server using a dll or something, so every player automatically gets tracked when they connect. That way we don't run into the issue where we trace IPs from logs and they no longer belong to the player we are trying to trace.
When I trace an IP, I typically only get as far as the network provider and region of the user (assuming they aren't using a proxy), but I also get the admin contact info for the provider.
On very rare occasions the trace reveals the customer's name and contact information, but that's only ever happened when tracing players with fixed IPs and extremely low pings, and they aren't typically the ones causing trouble.
