To sum up what I said in the other post.
if using whatsapp, don't bother with an identifiable photo.
You don't know who has your number and who can see it.
Don't leave your phone, wallet unattended (this is how i think asian beast outed me)
If you have an iPhone, when updating iOS remember it will sync your phone contacts (mine did)
Don't add your number to Facebook.
use separate email addresses- personal and punting.
Another thing, check your iPhone settings, a lot of you text from iCloud, this contains your real name, and sometimes the company you work for!
i have told dozens of men, i haven't received their number, only their email. They genuinely seem shocked when i tell them.
Easiest option is leave ID in car etc and use a cheap pay as you go phone.
2 phones is best.