Let's face it, 4 year old post, the email probably was changed after he posted 4 years ago!
This happened last year, where old posts would appear at the top. I would read and post without looking at the date, then felt foolish when it was pointed out to be an old post.
I don't know, sounds like a spam list recruiter or something!!!
Use ZZ Tops post on how to buy a Hot Tub. He covers most of the questions!