Is Skype in danger?
Windows Store version does not one of the most useful functions - search old messages. This prevents many users from moving to it from its classic version that has been working quite well.
Microsoft has axed excellent products (e.g. Silverlight). Is Skype the next one?
Skype cannot import contact from Microsoft's own product - Outlook. It could for certain versions, but it cannot now. This issue has existed for a long time. There is no doubt that Microsoft has the capability to address it quickly, probably in a few days.
The traditional desktop version of Skype has been working well for a long time, and loved by users. However, the Windows Store (a.k.a. modern or metro) version of Skype has probably the oddest design in software.
On small (e.g. 7") Windows tablets, the desktop version of Skype is not an option because of its fonts and buttons are too small. This Windows Store app looks good on small tablets. One has to use a Microsoft account (e.g. foo@hotmail.com) to sign in this app. Skype name does not work with this app (strange?). One can use Skype Manager to create an account for this person, and allocate credits for him to use. Here is the oddest design: the process creates a new Skype account internally with a new Skype name. Allocated credit goes to this new account. However this account can be used ONLY by the desktop version. In other words, he can never use the Windows Store version. Skype excludes one of its own products from its service!
Customer's purchase of Skype credit is probably the primary source of revenue for Skype, but there are many glitches.