[ygaf]

>The social network had even kept a permanent record of the roughly 100 people I had deleted from my friends list over the last 14 years, including my exes.

How useful is the info one can even get from this?

I mean even if you interpret unfriending as enemying (which is a leap), possibly revealing interests you don't have, associations you don't have.... it's a lot weaker (to advertisers) than positive information.

[lordCarbonFiber]

As mentioned elsewhere in this thread, it's probably so they don't recommend those connections in the future. I think the average user would be much more upset at facebook recommending they add their ex as a friend (because of course you have a lot of mutual connections, tagged pictures, and other flags that might indicate a strong bond) than just keeping a black list of people you've chosen to remove.

[ygaf]

My bad; that's social media 101.

[paulie_a]

Which is odd because Facebook routinely has recommended ex's.

[phy6]

I had nearly 4500 'friends' I un-friended from back when I did Zynga MafiaWars botting. I wonder what I look like on their stats hahah