It's reasonable to have unfixed bugs for years if they are not really blocking many people (and even if they did, but that would be too bad). Maintainers are focusing on other things that need to be done (or not, anyway nobody is supposed to fix bugs for free if they don't want to).

In this case, launchpad works as intended, as a place were you can track the (non) progression of your bugs.

Me too, probably, by the way (in other projects). My bugs reports are more like FYIs to the community.