You would also be surprised how many use their real name and surname when making a booking. I go one step further in that I no longer carry cards witth my name on or have any personal numbers saved on my phone.
On PNet FR Submission, I opted to have my email address shown to readers of the FRs.
I must have received approx 10~20 emails from other punters who wanted more info on the WG, etc.
As they thought they were sending their emails to another punter, it would be okay/safe to send them from
their work/home email addresses. some of these emails were from well known local employers or
specific domain names whose names you could easily google.
I had to constantly point out to them to start using a yahoo or hotmail account such that I saved
the phrase I used to send and would copy and paste it in my replies to them.