The point of agitation is to control development thus affecting tonality in a predictable way.
For me personally, well, my negatives are plenty sharp, I'm not looking for edge effects. I'm only making contact prints so even if they weren't very sharp they would be sharp enough. I've had enough experience with stand development to realize it is not for me. Reduced agitation to help control an extremely high contrast scene is one thing. I just don't believe stand development is a good general purpose development method.
Even Gerald's suggestion of only 5 seconds of initial agitation makes me a little nervous. =)