Really the question is how you define what is "too much", and I think we need to be careful when we say there's such a thing as too much pussy, especially in this forum.
I think given many of the perspectives expressed in this thread about STDs, broken families, addiction, psychologically damaged MPAs, the good old days when massage wasn't available, etc. etc. etc., what would logically qualify as "too much" in many of these cases is any involvement in the business whatsoever. Likewise, when you write about how hobbying less makes you feel better about yourself, voids best served by other activities and so forth, why would it not be the case that simply avoiding hobbying altogether would not make you feel the very best of all?
Alas we want to have our cake and eat it too, and so the best solution is "moderation." If you are losing control and becoming compulsive I agree moderation is very important, but like so many things in life, moderation is best when we simply apply it as necessary to our own personal circumstance, rather than prescribing it to everyone else regardless of the need.