1. put in category somewhat as I proposed it, on the grounds that it's been specified before and it's fairly clean
2. don't put in category, on the grounds that it's not been deployed
3. don't put in category but recommend the use of dc:subject
Time and again, the discussion whether or not to put something in Atom core.
As web applications evolve over time, so does the usage of meta data. Therefore I am +1 to incorporating a means to categorize items.
Slow but steady we should go away from saying/thinking 'hey, this is done in X, so we just use this.' On the long run it will pay back because of consistency and tightness, if this is the correct English term...
cu, Sascha
