Surely you're joking, Skype
support.skype.comhttp://justdelete.me/ is a good site for looking up these policies. Skype is bad, but not quite in the "Impossible" tier with sites like YouTube, Wikipedia, and Hacker News.
IIRC StackExchange is the same
According to justdelete.me, "If you haven't posted on the site, it's just one click. Otherwise, edit your 'About Me' bio to say 'please delete me' then contact support."
On SE, you can delete your identifiable information, turning your username into one of the generic "userXXXXXX" names. All of the content you've produced remains, though.
Which is really great. I hate looking for some obscure problem, find where someone posted a fix online, then discover the account of the fixer was deleted and the fix is gone now. Even worse when it's a program or file or something...
Skype is like Hotel California.
I laughed pretty good when I read that.
Netflix has the same policy or it did when I wanted to delete my account. Support person instructed me to change the email address to something unknown.
sadly, this is actually not new and has riddled many forums before.
skype has never allowed that before and, to my knowledge, never communicated why that is. Or if there maybe is a technical reason for it.
There is no "delete" on Internet
This is not discussing the entire internet, but trends among specific services designed make it far easier to add your personal data than remove it.
And arguably, your comment is not objectively true, but only tends to be true. There's no technical reason why data (even personal data) can't disappear from the internet - one only need look at the recent worries about the state of repos on Google Code to see that, until there's some overriding interest in backing something up, it doesn't necessarily get backed up.