Read this before ordering Downvotes:

Reddit downvotes will work the best if the post/comment is less than 2 hours old.

Downvotes won't always appear as to post/comment if the post/comment is older than 2 hours.

With downvotes, Reddit's mechanics won't be specific. For example, 100 downvotes doesn't mean 100 upvotes fall to zero in every post or every time.

However, no matter what is displayed, 100 downvotes at all times have the same value. It lowers the rank, reduces the visibility of the post/comment from other users.