I don't think I like it. It makes me nervous for some reason... For example, who's to say what constitutes a bad version of an installer
For the moment that's probably me, since I hold the release manager's hat :)
And given the state of the code before the big bug fixing series that happened during the 0.50-0.60, I'm happy to declare anything older than 0.61 as being bad and in need of upgrading (and 0.59 and 0.60 are actively dangerous).
Any single given upgrade only impacts a subset of people (with that subset growing smaller and smaller as M:I matures) but there was some pretty hideous bugs before 0.61. Things like:
"Doesn't install on ActiveState Perl" "Doesn't handle dependencies under CPANPLUS" "Doesn't defer dependency installation to the surrounding CPAN client" "Crashes on any Perl before 5.6.0" And a dozen other tricky evil problems. All the worst stuff got flushed out from 0.61 onwards. Adam K