I looked up "use vars", and it should be able to provide much convenience for that sort of "laziness". :-) (However, it is nearly half the solution anyway. You still have to explicitly declare each variable as local scope.)
Tastes may differ. Personally I consider the combination
of strict, vars, and my to be enough structure to be
useful as a spellchecker without having enough bureaucracy
to be annoying.
Which means that if you did get the feature that you want,
I would want the option of being able to turn it off.