In short: Modern content lockers are highly sophisticated. They use server-side verification, meaning the file is only released to you once the survey provider's server sends a "success" signal to the website hosting the file. Since Survey Destroyer only works on your local machine (your computer), it cannot easily spoof a signal coming from a third-party server.
In short: Modern content lockers are highly sophisticated. They use server-side verification, meaning the file is only released to you once the survey provider's server sends a "success" signal to the website hosting the file. Since Survey Destroyer only works on your local machine (your computer), it cannot easily spoof a signal coming from a third-party server.