I don’t see what’s so outrageous about having long file names. If the user wants to name files something meaningful to themselves who’s to say they shouldn’t use their computer that way? For that matter, for small enough notes, who’s to say the user can’t just put ALL the data in the file name? I can hear the shreiks now, but short of outdated technical reasons is there any reason to prohibit users from doing this? Filename (and location) is just one of myriad metadata about a blob of data.
I tend to agree that hierarchical filesystems are going to start disappearing because organizing everything in a single axis of taxonomy is inefficient (to humans) (same goes for symlinks, which are possibly worse), but while they are still around brain-damage restrictions from the 1980s shouldn’t be restricting how users use their system.