I think that hang around the hair boards for another 2-4 years. After that, I most likely will have accomplished my hair goals of length, thickness, shine and beauty. However, I feel that popping around every now and then to help out the newbies won't hurt at all.
So I guess, consistently active for another 4 years and seldom actively - indefinitely! I see a lot of the hair gurus doing that now. They are not as active as when they first started out on these hair boards but every now and then, they would just pop in to give their helpful input. I like that.