I've always played it that power counters on ice such as Data Raven or AstroScript Pilot Program don't cost clicks to use, but I've been wondering a lot lately if I've been doing that wrong. It doesn't say on the card (unless I'm just absolutely blind) that it costs an action, but I just want to make sure I haven't been and will not continue to be doing this wrong.

Thanks!

You're doing it right.

Compare a card like Datasucker with Haemorrhage - you can see one costs tokens, the other costs clicks AND tokens. If a click isn't listed as part of the cost then it isn't one.