aqhgfhsypytnpaiazh t1_je7xe4u wrote on March 30, 2023 at 1:33 AM

The survey website could be filled with ads or other tracking bullshit which earns them advertising or sales revenue.
The website could trick you into running malware, such as ransomware which pays money.
The survey data could legitimately be used by marketing and product research companies who will pay money for that info.
The survey could provide the scammers with enough personal info to break into your accounts, which could enable identity theft, taking out credit in your name, sucking your bank accounts dry etc. Or sell the data to other malicious parties who will do this.
The cost to operate these survey sites is basically nothing, if the gift cards are even real they will be stolen or obtained fraudulently.