Folks, thanks for bringing this to our attention.
Apologies for any confusion here - there was a segmenting glitch and this message was not intended for our tiered Members.
I read it a different way, as in... we think you might also be a member of another FF programme, but you can still fly QF and get the flights credited to your other programme (if you want to favour that programme over QF FF).
In a nutshell, this is basically it. Probably less relevant for the FT audience, as you are all have high awareness of frequent flyer programs, however many of our customers outside Australia have greater points balance/tier in their home program and this is a message to create awareness around this option.
Naturally, you're still welcome to credit to Qantas Frequent Flyer.