fairfax,
Just to explain a bit what was occurring with Blink 3.0 and Skype, if you were to review each rule request they would have differed in the protocol: TCP or UDP, port, and direction. Each time Skype is initialized, it is making a request outbound to random high ports in the range from 1024 to 65535 for both TCP and UDP in addition to TCP/80 and TCP/443.
With Blink 3.0, the rule created when you clicked on "Create permanent rule" and "Allow" from the interactive alert was for the specific protocol and port being requested at that time; therefore, you potentially could end up with 129,000+ rules if you continued to acknowledge each Blink prompt. With Blink 3.1, of which a beta is already available, firstly Skype was addressed with a default Application Firewall rule. Also, in consideration of applications that behave like Skype (recycling random high ports), now when clicking on "Create permanent rule" and "Allow", the rule will be created with "All ports" set as the default; this, by the way, is how to write the rule with your current installation of Blink 3.0. If the user would prefer to limit it to the specific port being requested at the time, you can still do so by clicking "Advanced" which will display the rule wizard.
I hope this helps. Please, as Spunner suggested, install the version 3.1 candidate available at the URL below. In addition to several bug fixes, it improves a bit on usability and significantly improves on compatibility with other software and environments.
Thank you for the feedback and for helping each other out.
Christopher I. (eEye)