Where are the left people in skype from?

Question

Skype

Left people are displayed on my phone in Skype in contacts,
but I didn’t add
them, and I don’t even have them in the phone’s address book, I don’t know them at all, I
changed my account, but still (

Answer 1

from other contacts
there was nothing to give Skype access to contacts

Answer 2

What the fuck are you doing in my address book? Are you tired of living?

You can start with this question.
And so most likely when you logged into Skype from someone else's smartphone and his contacts have now become yours