Why is it like that when an unknown person appears as a recommended friend on Kakao Talk?

A. 1

If it's a plus friend for advertising, it appears as a recommended friend.
It also appears when you register your phone number and add it to Kakaotalk.

Gentleman 9 years ago 0

OK

A. 2

Adding a friend on Kakaotalk means that the other person has registered your phone number.
If you register your phone number, you will automatically add a friend to Kakao Talk
In that case, it appears as a recommended friend.

Gentleman 9 years ago 0

OK

A. 3

People who don't know anything are often added.
Maybe it's a case where someone else has the old number to change.

Gentleman 9 years ago 0

OK