Alternatively, it could be something Stefan cares about a lot in his user-experiences.
FWIW, I agree with Stef. Tabs have mutated as to create such wildy different expectations in people using interfaces that feature them; but showing different modes or views of data based around a central point of departure or query seems to have emerged as the default understanding.
In 1999, Jakob Neilsen was bemoaning the fact that tabs where moving away from this meaning:
“I still think that less than 50% of sites use tabs in the (erroneous) meaning of navigating to the main sections of the site. Thus, I still think that the correct use of tabs is preferred and I recommend using different techniques to visualize the main areas of the site. But this may be a losing battle and I may have to revise this recommendation in a year or so if more and more sites adopt a misguided use of tabs.”
What’s your experience?