Bankrate bought TPG a few years ago (I believe they also own MMS), so TPG is quite set $. However, the business generates revenue through affiliate marketing, and each of his affiliate links generates a share of revenue or pay per sale for each new customer. This isn’t small time referral clicks. It’s not in TPG’s financial interest to recommend any offers that don’t make money for his business or write about better offers that might divert readers from his affiliate links.
So for example, TPG has not written about the 60k UR/$95 AF CSP offer even though some of his readers might think that’s a better offer than the 50k UR/AF waived offer that his links make money on. Or why he doesn’t write about ways to get targeted for better Amex signup bonuses even though those are generally once per lifetime. His readers look to him as an expert, but he’s giving biased information and withholding valuable knowledge that could lead to better decisions all so the business can earn money for itself and it’s sponsors.
The reason why DoC gets so much love on /r/churning is because he’s not owned by a bank or other company, does not have affiliate links to credit cards, is transparent with best offers, and discloses his links (like for
Amazon or eBay) but also makes you aware of your choice to go through something else that won’t make him money instead (like the JetBlue portal for Amazon or cashback sites for eBay).