Absolutely, it's a slippery slope and even if your single at the moment with 'nothing to loose', who's to say that in a months time you won't find the love of your life and who want's to start a relationship explaining how 90% of their Facebook friends are escorts...
It's sheer lunacy. People acting without a thought to the potential consequences.
So you meet a lovely civvy girl and stop seeing your favorite regular. She, like many other women, gets the hump when you tell her that you can no longer see her. What if she really liked you and was holding out in the vain hope that you may want her; that you may take her away from her current life? So she doesn't take this perceived 'rejection' very well. Already knows your real name, where you live as she's been around there many times, probably has your land line number and yes is even on your Facebook friends list. This of course means that she knows all your Facebook friends too. So you remove her from your list in panic. Too bloody late mate!
What about the married or attached guy who does the same, after previously telling her everything about his life, including where he works? So this prossie feels like the punter has treated her like a piece of fuck meat and has been thrown out with the trash. She feels that her lifestyle or life have been ruined by this man, so now it's payback time.
Think those scenarios are far fetched......... Caveat emptor