There is absolutely no way of knowing if the person is safe or not until you meet them.
All these star ratings, reviews, etc.....are only indicators that the person is potentially safe.
Accept the risk and use common sense is the only way to approach this issue.
Hi. I am brand new here, but when Freecycle was popular, I always suggested meeting in the local police department parking lot or even the fire department. If they didn't show up at one of those places, I just didn't do it.