Never really saw it advertised that much.
But was going through my rewards app, and website recently hoping that magically will get some extra bonus points (haven't gotten them) But nevertheless found this deal. May be mark it as a long running deal.
Its still a great deal (as compared to paying Qantas fee for first year or paying for CC that gives free Qantas Frequent Flyer access), joining Everyday Rewards is free, so technically anyone can join Qantas FF via Everyday Rewards for free. Not a clue on people having multiple Qantas FF account or multiple Everyday Rewards account, Both have terms and conditions saying only 1 account per member I personally dont travel much so these points as useless to me, but pretty sure they aren't useless to many others.
Their website says
Link your Qantas Frequent Flyer membership to Everyday Rewards
Log in to your Everyday Rewards account and link your Qantas Frequent Flyer membership number. If you're not an existing Qantas Frequent Flyer member, join here for FREE.
Remember to choose Qantas Points as your Reward choice to earn Qantas Points.
only idiots pay for a QF membership , a quick google will give you multiple ways of getting it for free