Comment 471 for bug 1734147

@ Steve Langasek (vorlon)
> I do not know what "system degradation" you refer to that would be related
> to this bug and would warrant a reinstallation. If you need to reinstall
> currently, the supported path is to install either Ubuntu 16.04 LTS or
> Ubuntu 17.04 and upgrade.

My browser has become disassociated with its launcher icon, my swap disk has issues and I can't launch any Virtual Boxes. There's probably more, these are all issues that I suspect a reinstall would solve. Also downgrading isn't an option, hence all four questions that I asked.