01gt4.6 is right -- we have no reports of scams on FitDay, and if we did we would certainly remove those ads from our mix.
Going forward, if you have a question about a particular ad's veracity or it bothers you in some way, please report it. You can post a screenshot here.
But as it's been said here, the reality is that the fitness and weight-loss space has an advertising pool that consists largely of this type of ad, and it would not be possible to block them all. But if you see something egregious, we definitely want to know, and protect our community from it.