Posted by Jimmy Wales:
If you see something here - or anywhere - that is useless or in the wrong place, the fastest and easiest thing to do is click 'edit' and remove it.
It's perfectly fine to even blank something if it's in the wrong place or is spam.
Sometimes, things only need a little tweaking - removing some bias, fixing a misstatement, etc.
But sometimes the best thing to do is just... delete it.
A notable response from Georgi Stankov:
But what happens if a detractor by purpose deletes the entry of another user? For example, for political reasons. How a user could appeal the deleted post? Who will arbitrate?
Jimmy Wales' response:
Geogi - in the wiki world everything is transparent. Someone who does that will quickly be banned. People are quite reasonable as it turns out - the failed philosophy of non-collaborative social media has made it hard to see this fact: most people are basically pretty nice. And yes, we can't be naive and assume everyone is acting in good faith, hence the reason some people get banned.