Swagbucks is increasing in popularity because it is one of the easiest of the best survey sites to earn points with. You can earn points for taking longer surveys, but there are also plenty of other good ways to earn points. You can earn points by answering simple questions, performing searches, doing your regular online shopping, and watching videos. There are even times when you are given freebie codes for free SBs that can be added to your total.
Most reviewed paid survey sites effectively promise not to share personally identifiable information or not to share it without your consent. It's an industry standard by which legitimate marketing research firms are bound. But many membership sites reviewed don't make either promise or do so only in a limited or wishy-washy way. Unauthorized go-betweens don't have to honor marketing research privacy standards.
They include sites that seem to be their competitors because they earn referral fees when you buy memberships. A couple mentioned in scam forums even try to dupe you into buying the same list at other membership sites they own under different names. Naturally, these sites also have an incentive to exaggerate how much you'll earn from online paid surveys.
However, the reality is that you aren’t going to get super rich by filling out surveys. Even the best paid surveys sites don’t offer a huge payout when you complete a survey. Most of them offer a small amount of money for the time you spend. You should also realize that many of them don’t even offer actual cash. Instead, you fill out surveys and you receive points.