4 days old and you're just now sending these out?
If you want action, you need to act within 24 hours, maximum.
Why? As one person said, logs. Another possibility is that action could already have been taken against the user. A third possibility is that they are currently INVESTIGATING the ip address.
The list of possibilities just goes on and on. The fact is that if you want action taken against something like this, you HAVE to act responsibly yourself, and get this to them in a timely fashion.
Personally, I think 3 days is mighty generous of ev1. Anything after 24 hours is going to be damn hard to trace anyways.
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