Personally I think the good or bad of a spinning harddrive is debatable. I have two machines here at home that run 24/7, and at least the primary drives are spinning most of the time. No faillures yet.
Some say constant spinning cuts out the stress of a drive having to spin up/down every so often, putting strain on the electronics.
And then some say that keeping the drive silent as much as possible will do that too.
Me, I don't know.
I just let them do their thing.
If you find you have increased swapping on your machine, maybe it's time to add some RAM to help it run better.