Read this before joining
Search engines have explicit policies against link exchanges intended to manipulate rankings, and systems specifically built to detect them. Participating carries real risk to your site: devaluation of the links at minimum, a penalty at worst.
Every defence described on this page (strict relevance, citation quality, natural anchors, one link per article, no back-and-forth linking, real-business review) exists to minimise how detectable this is. That is the same thing as making the links genuinely editorial, which is why the rules are what they are. But minimising risk is not eliminating it, and anyone telling you otherwise is selling something.
Our conclusion is that a link which reads as a real citation, in a real article, on a real site, is the kind of link that should exist. Yours might differ. Decide before you join, not after.
Why the caps are so low
One link per article, four niche edits a month, a 90-day cooldown between any two sites. Every threshold is set toward paranoia rather than volume, because the network's survival depends on being the least footprint-y thing in the category. A faster version of this product is a worse one.
What we do not do
No paid links, no anchor text you choose, no guaranteed placements, no bulk. You cannot buy your way to the front, and there is no tier that unlocks looser rules. Paid plans buy volume and tooling, never exemptions.