I never filed bug tickets until I had graduated college and worked on software full time. Then I learned that the devs _do_ care (at least on the small software I've worked on) and they love to know if something isn't working, especially because most people don't file bug reports.

I remember an HN thread from probably two years ago about how the Linux version of some software got way more bug reports than the Windows and MacOS versions, despite way fewer users. The bugs were actually mostly cross-platform and non-Linux specific, but Linux users were just more used to actually filing bug reports for the software they used.