Just received an email from Qantas offering a free 200 QFF points for a 1 minute survey.
I just did the survey and it was simple to do, though it does mention you have to consent to receiving a phone call, so I put a fake number.
The T&Cs say it's targeted:
You must be a member of the Qantas Frequent Flyer program to earn Qantas Points. Membership and Qantas Points are subject to the Qantas Frequent Flyer Terms and Conditions. Any information collected in this survey will be handled in accordance with the Qantas Privacy Policy. This offer is only for the original recipients of an email from Qantas Assure about this survey. Qantas Points will not be awarded to any other persons who attempt to complete the survey. Each Qantas Frequent Flyer member can earn a maximum of 200 Qantas Points for submitting this survey. By submitting this survey, you consent to receiving a telephone call from Qantas Assure regarding life insurance. Qantas reserves the right to withdraw or extend this survey at any time.
If you received the email, go for it.
If you haven't received the email, still go for it, you've got nothing to lose, but 200 QFF points to gain.
Is it targeted? I didn't get them email but filled the form out and it worked for me.