Accounts and addresses may be blocked for: * Persistent personal attacks. * Persistent vandalism (though obvious, blatant vandalism warrants an immediate block, such as removing page content for no reason or removing references for no reason). * Persistent gross incivility. * Persistent harassment. * Persistent spamming. * Edits warring or reverts warring. * Breaching the Multiple Users policy. * Persistently violating other policies or guidelines. * Accounts with inappropriate usernames.