In reply to AlanLittle:
Why would you do something when there is a better and safer alternative that you already have on you (the rope)?
If the OP is asking whether they can use the daisy chain to strip a single-pitch sport route safely- yes they can. If they're asking whether they should use a daisy chain to attach them self to an anchor then surely the smart answer is no? Sure they COULD but why would they?
If you're on a multi-pitch then have your belayer tie you off or clove-hitch onto the anchor. There's no reason to carry an extra sling to attach yourself to an anchor, plus it'll just get in the way on your harness.
Not scaremongering at all, just pointing out best practice.