On: Facebook Doesn’t Want You To Know Who Unfriends Yo...

[tokenizer]

I'd say that it isn't to mislead someone, but to allay their feelings. It's out of kindness and not malice that's for sure.

I like this comment, I think it explains why it's not as simple as being honest: https://news.ycombinator.com/item?id=6624928

[klipt → tokenizer]

This explains it in more general terms:

http://www.youtube.com/watch?v=3-son3EJTrU