Its you're responsibility to due the research whether a client is "safe" or not.
You may ask your # to not be published but ultimately it is up to the reviewer.
The onus is also on you to ensure none of your personal info is accessable via a google phone # search by investing in a hobby phone.
Any consequences suffered is strictly your own.
My advice to you is not publish your phone # anywhere and give it out to only those you've screened beforehand.
Once they've passed that then make it clear you do not wish to have it published in any review.
Audrina Monroe is a good practioner of this.