This post is pretty inappropriate for an ATMB thread.
To all, I will say this much. He made a sock, he used it for one disappeared post and was caught and banned by @engineer_comp_geek. That is the whole story.
At least 3 of us moderators check the new posters. That is part of why you see so little spam on the board. So we will see a sock of a poster in some cases before they post.
Obviously discussing any techniques we use would be a bad idea as far as catching socks, trocks and spammers.