Tom being a former member was never in question, as I recall. The fact is that Tom is a virtual username, and that username does not exist anymore.
But thanks to you, i've found some posts that Pete intentionally conflates me with Tom and some imagined debt owed to Pete, by Tom/me.
He repeated that scam just a few posts away.
So thanks for you assistance.
As to searching, any attempted searches for posts by Tom draws a blank. As I was not aware of the interchange between Tom and any others, it's not possible to guess any other names to search on.