You make a specious argument. Mail::Box::MH doesn't pull 70
*external* modules. Mail::Box::MH is part of the Mail::Box
suite, developed from scratch with few external dependencies.
If you take exception to Mail::Box design, this I can understand
as I've tried using as well. However IMHO the issue is OO
gone mad. Now if you are truly simply concerned with the number
of use statements anything uses, than I am inclined to agree
with what others have said, there is no such thing as too many;
especially when the alternative is to reinvent the wheel.
PS> strict et al. are pragmas and therefore probably oughtn't
be considered modules, especially in this sense.