Back in the day my entire extended family used it to connect with each other across the globe. But today? I don't know a single person, old or young, that still uses it!
i know of two companies (via acquaintances) that use skype (the regular non business version). one is a medium sized spam company that trades IPs and malware from eastern europe whose spam clients are all using skype. and the other is an online porn company whose contractors are all using skype. i couldn’t find out why they’re not using something else.