Which implies the employers should also be screened - are they 100% remote, or just allow remote workers? Do they really know how to work remotely, or are they new at this? Do they do occasional gatherings of remote people? Is it world-wide remote, or "in-our-time-zone" remote? Are you truly free to live anywhere you want, or do you need permission to move to a state that doesn't already have an employee in that jurisdiction?

These are all potential deal-breakers for remote professionals, so I'd expect some employer screening to gather answers such as these. I wouldn't exclude companies from the site based on the answers, but I'd absolutely tell potential candidates the answers so we can self-screen out of the ones that don't match needs.