I submit for your consideration:

Policy regarding abuses of the voting system

The following behaviors are counter to the spirit of PerlMonks and are considered abuses of the voting system:

1. Massive downvoting of nodes belonging some specific user.
2. The use of vote-bots for any reason.
3. Voting on nodes you (the human) wrote.

Any violation of this policy will result in a suspension of your voting privileges, and may result in having your XP reduced by an amount we deem appropriate.

If you suspect you have been the target of a malicious downvoting campaign, please /msg [gods]. We will look into it.

References:

1. History now influences voting
2. All your Votebots are belong to us
3. Site Rules Governing User Accounts