[appleaintbad]

Ugh. This is so wrong, even though some of the arguments are valid criticisms.

Why is it wrong? Transactions and referential integrity. Without being able to guarantee transactions that update data in the database along with any other data, non-DB file-based or not, then you chance issues with referential integrity. Even if you have a transactional infrastructure that you would bet your life on, something could happen like a partial restore that restores the file system but not the database.

It isn't that it is impossible to have a working transactional infrastructure without storing these things in the database, it is that it is much easier to store it in the database, and sometimes making things easy can save your ass.