This is something I've considered as well. I just wasn't sure if comment rewards were tied to post rewards or not, as in once the post pays out the comments no longer pay out. I also considered upvoting more recent posts telling the author that I'm upvoting because of an older post and giving a link to the older post.
I suppose there are ways around the seven day limit.
I think that it only counts for comments that are also older than 7 days old. I don't think it would let you upvote if a new comment on the post wouldn't be pay-out-able.
I think you can still upvote posts that are older than seven days old, so I don't see why it wouldn't let you vote for a comment even though it won't pay out. I'm probably wrong, though, I still don't quite understand how everything works here, haha.
Have you tried upvoting something older than 7 days? I haven't in a while, but I think it gave me an error message. Haha I don't quite remember.
I think when I first started I upvoted an older post, but I can't remember.
I think it does not earn anything after 7 days. I was thinking about a way around that. If I'd leave a comment on the "old post" and the author responds to that, the comment itself CAN still earn since it would be younger than 7 days. So people who re-discover the author could sill support them!
Exactly!