Originally Posted by FlyFasterFlyFarther

Any email address ingy (Frugal Travel Guy the person, who used to own the Frugal Travel Guy blog) came into contact with he seemed to add to his 'newsletter'. As a result I would receive multiple copies of that newsletter, even though I did not ever subscribe to it (and did not really want it, let alone multiple copies of it).

My guess is that since IB bought that blog, they merged the FTG email list into their FT one very recently. Perhaps your work address was in Ingy's possession?

This is one mechanism by which poor email address collection could have polluted the FT list. It's admittedly just a hypothesis as I cannot speak to your situation directly.