If so, you need SAP Universal ID. In a few months, SAP Universal ID will be the only option to login to SAP Community. Without it, you will lose your content and badges. If you have multiple accounts, use the Consolidation Tool to merge your content.
In XSL 2.0 we have many usefull functions, like max, avg, etc... Is there a way to implement this kind of functions in XI? We are using XI 3.0 with WAS 7.