Hackers can get your IP through Skype by just sending a link, no click required
There is a discussion on Hacker News, but feel free to comment here as well.
https://www.404media.co/hackers-find-your-skype-ip-address-microsoft-wont-fix/Open linkView original on derp.foo
I remember a time when skype was p2p and it was easy to find IPs with netstat
ICQ, IRC, MSN, AOL... They all had this problem long enough ago
Someone getting your IP is as big of a deal as someone getting your username.
FTA:
Just because your privacy isn't valuable doesn't mean everyone else's isn't.
An IP isn't private. It is literally your network's public ID. If you want to hide it you use a proxy, not relying on big brother corporations.
Also, sharing your IP is somehow okay if it is with Microsoft who absolutely sell your info to data hoarders and advertisement companies, but not whoever you're chatting with? If anything, using p2p is more private because then you ONLY share the IP with the recipient.