Why does a question tagged with " SQL | UI Web Dynpro ABAP" show up in community "SAP SQL Anywhere"?

I'm just about to try to get to know – "try to understand" would be a huge exaggeration – this new tagged community.

However, as there are currently just 2 meta-questions here (*) and that new one "take value from string for where condition", why does that show up here when it's tagged with "SQL | UI Web Dynpro ABAP"?

I'd thought the tagging would be the core of the new community?

(Note: I don't bother whether that particular question is found here, although IMHO it seems unrelated to SQL Anywhere, it's just a question how the tags work.)

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(*): EDIT: Oops, I'm wrong, those questions are shown currently when entering the SQL Anywhere community via http://go.sap.com/community/topic/sql-anywhere.html.

After I've asked my questions, I'm led to the "SQL Anywhere tag" page, and there are several more questions.

Resume: Another attempt to understand that new place has failed, back to the friendly forum.