Noom is dominating page 1 of the SERPs with content that's not their own.
When I was diving into their marketing strategy we found that, out of 11 results showed on page 1...
This was for bottom of funnel search terms like...
Thought it was a really smart play.
Those lower funnel search terms are people who are almost ready to buy.
A message from Noom saying "we're so amazing" isn't going to be enough.
By incentivising third party reviews through affiliate commissions they can have promotional pieces covering page 1 that appear to come from a more reputable source.
Complete conjecture here on my part, but if I was gonna try and do something similar, all I'd do is...
Easy way for you to be featured in top ranking content, and get 3rd party trust signals for your offer.