How much is too much? Turning a compost pile

I've had my compost pile in the same spot for several years. Rarely have I taken any out. If I were to hazard a guess I'd say, all told, if I had all the grass and stuff I've piled up on it green, it would be over thirty feet tall. It's down to a healthy 4 feet tall now. There are a ton of red headed earth worms in it and I've started turning the pile about every other day gathering worms for my bin. I've only rolled it 4 or 5 times over the course of 2 weeks, but I've noticed some changes.
It's still good and warm in the center, but not as hot as it was at first. I think if I left it, it would heat back up again. It's good and moist throughout. The top is flat so the rain will soak right through without running off. We've had over 3" of rain this past week alone so it's good and moist. I haven't seen any mold or mushrooms. Along one side is about 200 squash plants from the heirloom Crooknecks I threw in last fall. I'm letting them be for now in hopes they'll produce something for the farmers market. If I don't see some blossoms soon I'll turn them under.
It smells wonderful, just like it should. All in all I'm pleased with it, but don't want to shut it down by turning it too much. So my question is, can turning my compost pile every other day or so shut it down? The picture shows it after I raided it for worms this morning.