What I mean Stub, is that the element of risk with Parking a domain goes up when you also put a "for sale" sign on it. Say a domain dispute was filed, it wouldn't be too hard for them to prove "Bad Faith" on your behalf. For valuable domains (even if they are generic), it's not worth the risk imo.
I try to put a note on the bottom of my parked pages that this is a temporary place holder page, until a website is put up. I am very careful, and I want to minimize risk in any way I can for my property that I worked very hard to obtain.