Vote manipulation is against the Reddit rules, whether it is manual, programmatic, or otherwise. Some common forms of vote cheating are:

Using multiple accounts, voting services, or any other software to increase or decrease vote scores.

Asking people to vote up or down certain posts, either on Reddit itself or through social networks, messaging, etc. for personal gain.

Forming or joining a group that votes together, either on a specific post, a user's posts, posts from a domain, etc.

Cheating or attempting to manipulate voting will result in your account being banned. Don't do it.

To report Vote Manipulation, please visit this page.