The SPAM came from a company called Internet Brands. This company recently purchased FlyerTalk from Randy Petersen. One can certainly expect IB to try and recoup the money they paid for FT, however:

• Sending SPAM to us was a truly bad business decision.
• Doing so after the porn ads and malware popups has made many of us lose trust in IB/FT.
• Misconfiguring the opt-out address was inexcusable (and illegal).
• Sending blatant SPAM that doesn't even try to let the recipient know the sender has anything to do with FT is totally stupid.

IB seems to be rapidly devaluing the good will it purchased from Randy.