Yes. Pretty much. The reason why I'm chosing to store the files is the project they're part of. I don't need them otherwise. If the project is inactive or dead

Yes. Pretty much. The reason why I'm chosing to store the files is the project they're part of. I don't need them otherwise. If the project is inactive or dead, I'll compress the folder into some archive and delete the folder. If something is meant to be useful for multiple projects it either gets symlinked, or put into its own project. Anyway, I'm not saying tagging as a primary categorization interface is not useful at all. It's just that it has limited applications where it would be definitely more useful than traditional filesystem hierarchy.