AdobeFnt.db and FntNames.db files - don't delete them!

Question

Some folks will tell you to delete the Adobe font cache files to attempt to fix certain problems. The font cache files are AdobeFnt*.lst files.
Two files ending in ".db" are not caches, are not subject to any kind of corruption that we know of, and should not be deleted. AdobeFnt.db and and FntNames.db are both static database files used by InDesign. Deleting them can cause problems.
"FntNames.db" is a database of menu name information used to give nice, long, friendly and typographically accurate menu names for old Adobe Type 1 fonts when displayed in modern Adobe applications. It is a plain text file, so it's possible for users to edit it - though this is not recommended.
Assuming that deleting it doesn't cause any problems launching InDesign, it will certainly cause a change in menu name handling, resulting in the font references in future documents (for the given list of Adobe Type 1 fonts) being inconsistent with everybody else, and even with your own past documents.
"AdobeFnt.db" is another static database file, this one for font and glyph metrics for font substitution of some common old Type 1 fonts when using Adobe Sans and Adobe Serif. Mostly it's used by Acrobat and Reader, but it can be used by other Adobe applications too.
Although "AdobeFnt.db" is less critical than "FntNames.db", deleting it certainly won't help anything either, as it is not a cache file.

Answer 1

Searching for AdobeFnt.db finds an installer log for Illustrator CS from 2003, which mentions it but does not find the file. Following the path from the installer log though finds it in Library/Application Support/Adobe/Type Spt and it is last updated in March 2005. Does that mean that CS2 apps do not use it at all?
The FntNames.db seems to be from March 2005 and is mentioned in the installer logs for both Indesign CS, Illustrator CS and GoLive CS, but not for anything else. Does that also mean it is not used by CS2 apps?
Or does it mean it only looks in certain folders for certain fonts and not everywhere for all fonts?
I am in the habit of always removing the Adobe fonts from the Library/Application Support/Adobe/Fonts folder and move them to the Library/Fonts instead as that is a more convenient place to store them. That's where I keep my regularly used fonts. The rest (those just occasionally used) are handled by Suitecase (note: have never had any font problems whatsoever over the years).
Does that influence the dbs? Or are the dbs invisible nowadays or since CS2? Situation is the same on both my Intel iMac and my PB G4, both with OSX 10.4.8.