Here's some tips for mods from someone who's been a forum admin for close to a decade:
If the post contains information other than porn and/or gore, no matter how politically charged and you nuke it instead of editing links and PMing the poster - you are a forum Nazi and as soon as people find out who you are they will secretly hate you which will ultimately lead to the loss of your mod rights.
If you are "too busy" to read and edit posts, if you just want to play god with only "kill/not kill" options, you have no business being a moderator. Mods are worker bees, they are like public servants, not medieval executioners.
Topics that spiral into ad hominem attacks need to be closed (NOT deleted), but only AFTER you post a message at the end on why you closed it. If you just close it secretly, like a pussy, you piss a lot of people off and as I said, you cross the line from being a neutral mod to a forum nazi.
If you are, as a mod, personally offended by the content (e.g. someone calls Queen of England a cunt), please remember that no one but you absolutely cares about your "offendedness", it's OK to be offended, people get offended every day, and historically there is not a single case of anyone getting ill or dying from being offended. No one but you cares. And if you chose to delete a post or topic based on you being offended, you overstepped your bounds and need to be stripped of MOD rights.