I don't know if this wiki has a policy page, but I thought it might be a good idea to get one on this wiki, so that users know what is and isn't appropriate and the admins all give equal punishments. Also, I think somethings should get a warning before a block, and different blocks for each warning
For example, you might have something like this
|Offence||1st Offence||2nd Offence||3rd Offence|
|Spam/Inappropriate Comments||6 weeks||3 months||Indefinitely|
|Vandalising Pages||6 weeks||3 months||
Of course, this is only a suggestion, but I think it will make it a lot fairer.