"no estimates" because in a lot of job boards, when they don't have the salaries for the job posts, they estimate it based on the median salary of the position. I only advertise jobs with salaries, I don't guess them. Do you have a better wording to illustrate this aspect of "no estimates"?
Also, would you prefer having less jobs shown, but with a minimum $100k salary if it's a range?
Regarding the vetted aspect, it's related to the fact some companies aren't actively recruiting (you can read more in the article linked in the About page of the website).