I'm new to the shard so maybe this is intentional but Lore and Knowledge skills did not have a 10 sec delay on OSI and I've never seen those skills have such a delay on any other free shard. Forensic Eval may have had a delay - i never used the skill, but Item ID, Eval, Arms Lore, Taste ID and Animal Lore didn't have a delay. I am 100% positive about this.
Actually from what I remember he's right. There was a quicker timer for things like anatomy, eval and lore.
When you could gain skill on any target, over and over, it was a 10 second delay. When you needed to choose multiple targets (and possibly move) to gain skills, it was a 1 second delay. It was never the case that you had a 1-second delay AND could choose the same target over and over for skill gains.