We don't have
7, but rather we have windows-7. By the same token, there seem to be a lot of "cat name only" tags out there that, I believe, should be prefixed with os-x, making it os-x-leopard instead of just leopard
Can't we just ban the use of 'cat names' and insist on version numbers, it's childish and crappy, it's 10.7 or whatever - we don't call Windows by its dev names 'Windows Whistler' etc.
Personally I'd kill all use; back-convert every posting of cat-names and bad the words from new questions.
And I LOVE apple otherwise btw.
If I remember correctly a certain amount of SEO work was undertaken which involved tags.
I would say standardise on what the people who use the tag think is correct and synonym the variants to that. This will help people find answers.
Looking at the figures the reality is that most people don't seem to care and use macosx/macosxserver. Those that do express a preference seem to prefer the code names.
Some searching suggests that it may be able to recategorise some of the macosx/macosx server questions based on heuristics but we'll still end up with ~1000 without a specific tag.
WRT version names & numbers:
Microsoft brands Windows releases by a name ("Windows Server 2008 R2"). The internal version number (6.1) and build number (7601) have not been used in marketing since Windows NT 4, and our tags use the names.
Canonical brands Ubuntu releases by both a name ("Lucid Lynx") and the date of release (10.04). The release date seems to be more prominent, and our tags use the release numbers.
Apple brands Mac OS X releases by both a name ("OS X Lion") and a version number (10.7.2). The name is more prominent.