I can only speak for myself, as a lurking visitor of many years. For me PM has become a place I enjoy visiting more or less weekly, to read learned disputes rather than to find relevant information about a particular problem I'm working on.
These days Google / CPAN solves most of my problems, and I suppose this is typical for many professional Perl developers. That said, I still learn much from visiting PM about Perl internals and ways of doing things in Perl that I never dreamed of. I would very be sorry to see PM decline further, so I hope there are ways to bring more people into the fold. As already suggested, perhaps Perl 6 is the way forward? Though for me and my company, Perl 5 will remain the language of choice for years to come because of legacy systems.
My deepest gratitude to the maintainers and contributors of PM, you still make Perl look sexy.
