I agree. I'm used to saying this to the rest of the development team: we are very critical about our own code because we receive all the bug reports, which tends to give us a feeling that there's always something to fix. But seeing it another way, with hundreds of thousands of deployments, having 2-3 issues a week is ridiculously low and means that the vast majority of deployments will never face a bug in their life.

It still poses us a problem which is that users don't upgrade. For example 1.6 is still routinely met in production despite having been unsupported for 2 years, and sometimes with 3 or 4 years of uptime because users forget about it or just don't want to risk an upgrade for no perceived benefit. I can't blame them honestly, as long as they upgrade before reporting problems or asking for help!