Because of the dynamic nature of IPs, and the related risk of collateral damage, most blocks should be in the range of 24 hours to 1 month, with exceptions noted below. Only in very rare cases should non-proxy IPs be blocked for more than three months. When considering blocking, it is important to remember the axiom "Never attribute to malice what can be attributed to stupidity" — article blanking or addition of fanon may be just a well-meant attempt to remove inaccurate information or expand the wiki. Always assume good faith, but remember that the rules apply to everyone.