"That isn't a particularly detailed announcement--technically Microsoft would be within its rights to kill Skype classic tomorrow--but it should at least temporarily appease Skype 7's supporters."
And every single Skype user would be in their rights to stop using Skype tomorrow. Capitalism is just a trade-off between what a producer wants to charge and what consumers want to pay. Skype is "free" for users, but Microsoft must make money somehow. If they want to use Skype to induce people into the Microsoft ecosystem, then they REALLY need to work on appeasing their customers better.
If you offer free cookies to join the darkside, they better not be oatmeal raisin!