It should be listed right next to their username if you can find a Mike Adam's post. That's how I was able to tell which posters had which screen names.
I thought you could tell all of brule's screen names because
1) He never uses capital letters when spelling. Not for proper nouns or beginning of sentences. The only person who could match this feat was goldfly/crump.
2) He usually had a proper noun followed by a number (usually double digits) in his username. telfair13, knicks22, braves22, etc.