It wasn't a complaint, just a statement. My interest in the module goes back before our recent exchange on the subject, and probably well before your ownership of it? As the last update on cpan is dated July, 2002 the unmaintainedness likewise goes back way before your time. As that date relates to circa. the 5.005/5.6.1 era, and knowing the major changes involved since then with the advent of iThreads and similar, there is probably a major amount of work involved.

If I had the appropriate skills, I'd be offering patches, but I don't yet understand enough of the internals to mess with modules that have such intimate relationships with the internal structure of Perl itself.

From my best efforts to understand it, B::Generate will never operate under threaded builds without some major surgery, and as you don't do threaded builds and I don't do non-threaded, it's idea that'll never get explored.