Hello, thank you for your comment.

We agree that two days could be a good solution. Sometimes we can see posts in trending that are close to the 48-hour mark.

We still have one option of deleting post if overall reward is negative. One can self-downvote to counter the positive reward and then delete the post to makeup for mistake or so.

That's a good option, but not everyone has enough HP to self-downvote (if there are big autovotes), and when the post already has comments, it cannot be deleted.

This is something that we have recommended only when it's a mistake or sometimes when 3Speak or other apps have bugs. But we still think that we need something that gives the option to the user to have visibility.