I was somewhat surprised when a provider showed up in a Facebook "Do you know...." email in her civilian persona complete with all the domestic stuff... cats..  dependents.... as someone I might know along with a number of other random people that I have a vague second or third hand relationship with.   And - being facebook - put in a nice button to "friend" her.

facebook collects data from your contacts. If you have her number saved as a contact and she has that phone number associated with her facebook. You will get a "Do you know". Btw facebook app on your phone collects data from EVERYWHERE on your phone.

A lot of people use their personal emails and phone numbers when contacting providers, and Facebook stores all of that information and allows you to find others with it

One less security risk.

for hobbyists to use burner phone or burner phone #.  For that matter you will also need a hobby-only email account. It is especially recommended if you're already on the grid.

I personally avoid all social media to be safe. Too much online on these days.

That's why I don't use FaceBook or Twitter. Too intrusive.  

then at the least, you need to change the privacy settings on:

my Facebook friends. One of the swinger ladies posts her daily bible verse of the day. Her husband likes to watch while a guy and girl do her. The provider I trust and she wanted to follow our year long trip around the world.

Especially when the FB app is open on your phone its tendrils go everywhere, doesn't matter if your hobby email/phone is linked to it or not. It's just the "you may know" ribbon, you obviously don't have to friend anyone on it, or accept a friend request. Way bigger problem for providers than us...I've seen a few real names. I don't care and forget them as soon as I leave the page, but I ain't everybody.

The pernicious, multi-tentacled, invasive, disgusting Facebook.  It has been discussed previously, many times.  
 
"Settings" and "filters" will NOT PROTECT YOU from the digital reach of Facebook, Twitter, Google+ and all of the other behemoths who are there to connect your digital dots whether you want or intend them to or not.  
 
Almost any trail on your computer can become interlinked with other trails. Buy a teddy bear for your 10-yo niece on Amazon and the next you know she is friended on some Provider's Twitter feed that you thought was separate because you used a fake name when you logged in.  
 
These companies have tentacles that will touch you everywhere, and not in a good way.  They are NEFARIOUS.  They can expose you and ruin your life in pursuit of their self-stated goal of connecting everyone in the world -- EVEN IF IT'S AGAINST THAT PERSON'S WILL.

It's because of your username.
It's pompous... I have a hard time convincing myself I'm the shit.
So using names like that only make it worse for me..

Welcome "Valued Customer", every time I use the self service check out.....

For me - just getting a "you may know" is not a big deal.  I just found it fascinating and wondered if other folks had the same experience.  For her, there is obviously a privacy issue involved.  

It causes too many headaches, and sometimes strips you of the fantasy that so many have come to love. Or! keep a little black book lol

So are wolves a good fuck?
"Pompous" is talking about fending off wolves ...  

How does anybody NOT know this stuff by now?

Chances are you guys have a mutual friend or are a friend of a mutual friend.  Just ignore it...don't friend her.  The provider needs to learn how to use security setting on her FB.  

I was just saying that thinking of yourself as Valued can be bad for the mind.
Save your venom for someone who cares dude