I'm ready late to the discussion here, but wanted to add my thoughts.
If you're fully aware and on the ball with things, then the change wouldn't be an issue. However, new users won't be aware and it could be a while before they are enlightened to it, depending on how much the read and the whether they happen to read the relevant things.

Also, how often have you upvoted a comment only to discover that it was within just a few minutes of being posted? Not a problem at the moment, it just means they get the rewards and you don't get anything in curation. With they suggested change, however, even they will miss out on any benefit of what you were hoping would be rewarding them for their interaction.