Facebook goes through a lot of trouble to hide your haters.
- One cannot dislike a post, the post can only be liked or ignored.
- You can’t see a list of friends who unfriend you. You can only see who adds you and the list of current friends.
- If someone posts a bad comment / tags you in an inappropriate photo, you can delete the comment / tag easily.
- If someone annoys you, it’s very easy to block that person on Facebook.
- If someone sends you a message and it’s not on your friend list, the message automatically goes into a folder which generally is not very visible on Facebook.
On Twitter there are tools who show you which users unfollow you, but with the standard Twitter interface, this is isn’t an option.
LinkedIn has no list of “lost connections”. You don’t easily see which people unfollow you.
Other platforms, though, are much more permissive with such data. You can have MailChimp send you an instant message as soon as someone unsubscribes.
There are dedicated tools to see who unfollows you on Twitter / Instagram: Unfollowers.com.
Also for Facebook, although they tend to block application such as these: Unfriend Notify for Facebook.
You surely must wonder why I try to suggest having a measure on the people who unfollow you, although, generally, online sites generally try to hide this information from you. Below, my answer on the matter.