I am new in italki but I have met many such people. (￣_,￣ )
Skype is a good tool to do voice call or even video call.
I added some italki friends on Skype too, just 'keep in touch'.Never have chance to practice oral English,etc.Still I agree with you that opening camera is not necessary.
But I don't add any stranger now due to the reasons others have mentioned. And It seems Wechat and QQ are really popular these years.
@Carlo Are you quite sure that skype contact cannot be used for any sort of phishing or identity theft? I don't really know all the details of how it works and all that they can do exactly, and I would really appreciate an explanation to why skype is safe and email is not. I am seriously concerned about cyber crime, and I know for a fact that there are some people who collect vast amounts (thousands) of skype contacts here on italki with no intention of exchanging languages, or even flirting. They only target younger females who provide their photos on italki, and prefer women from certain countries to others. They ask for your skype contact in the first message.
@Zoéy You should only exchange skype contacts with people you actually plan to talk to on skype. Exchange a couple of messages first to see if they are the right partner for you, if they are serious about language learning, if their language level is good enough to help you improve, if you have something to talk about. Only when you agree to have a conversation, end preferably after you schedule this conversation, exchange your skype details. This will drastically reduce the number of people who will have your skype contact, and the associated risks.