jokes aside, I think a moderator should be able to see something from every angle and not put his or hers opinion into the decision wheter to keep posts free or to change them,
You shouldn't be amazed at how difficult that is.
For starters, if I'm on any of the sides in the AOS/MorphOS/AROS split, I'm more inclined towards AOS. Because I know what troll posts irritate me to a certain extent, I know they'll irritate the more rabid AOS fans far more. However, I'm not a MorphOS/AROS fan, so I don't know what kind of comments would irritate me (beyond the obvious '.... is a load of crap', or something), so I tend to let another moderator pick up on those. I might draw other moderators' attention towards particular potentially-suspect posts as well.
(Hypothetically speaking now) Then, the balance needed is altogether different. From that perspective, AO staff ought to be 'aligned' to different sides to begin with to provide a balance.
(More reality speaking now) I think the above paragraph needs to be part of our (AO staff's) focus in finding a new moderator.
All of that aside, I try my best to be an 'outside onlooker' to content in these forums. I try to judge them from how a techie stumbling on this website would think of the forum content.