I'm still not real clear on curation rewards, believe it or not.

I understand the concept of timing your vote and payouts and such. But I can't find anything about voting after a certain period of time. Specifically, is there a point in which payout no longer happens for a post?

For example, if I vote or comment on a post that is 7 months old, can I expect any sort of payout from it or has it been paid out already and my interactions would only be for the experience of doing so? Or do posts get new payouts every so often based on what's happened since last payout?

Any help would be greatly appreciated, even if it's just pointing me in the right direction.

Thanks!