How Visible Am I?

While testing different tools I would like to know how traceable/untraceable they are compared to one another.

For example I have been told By IT that some port-scanners will lock up the servers a big negative.

As I'm doing Reconnaissance how do I know how visible I am.

Therefore, I am wondering if there is a group similar to the NUll-Byte group that is dedicated to the Digital Forensics side of the face-ff? so I can learn how to check my tests?