This is fixed.
The design didn't really consider pages with multiple tags. It was really intended for things like:
Public Questions tagged [asp.net]
You can really tell because your header has
[asp.net or vb.net or ...] instead of the correct format,
[asp.net] or [vb.net] or ....
I've restructured the header for the tags page so if two or more tags are present, the header will more closely resemble the search results header with a short fixed heading followed by a normal sized blurb listing all the tags:
Ironically, this isn't that much shorter than the previous header, but it's a lot prettier, more useful, and consistent with the search results page.