1. yes
2. never
3. no, I have no need for it (for my hdds, files, etc... the forum can sure use one though
)
4. +6
5. Sometimes
6. No
7. Since I consider tags as "search tags" and not words as they are written (thus no accents and/or spaces and using the plural form of terms (unless the singular form is quite different) which includes the singular form already.... all this since people can forget accents, write them differently, can consider some terms loose and not with a space in between, etc, etc!!!) or to be actually in the text, I would index those texts as:
a) pathe freres french businesses brothers movies company companies phonographs records.
b) citroen cx cars autos french automakers manufactures models 1974 1991