Most new people using this system were getting pretty screwed. They see a post, upvote it, and don't even know they are losing a bunch of their curation rewards. The rule was really made for back when we had exponetial rewards and the same 10 authors were the only ones making anything. So, getting on the post first really mattered. Here it's not as important since the change to linear rewards. To me new users are losing curation rewards as the con, and there's really no more pro since the change to linear. It's an easy decision to include for me.