Walter Montego:.
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Agreeeeeeeeed!

The current system with the moderators:
-delete anything THEY think should not be posted or
-do anything THEY think is right, is not good at all....

The way the moderators should act is to have a charter and force the posters to follow it.
Anything that doesn't violate the charter should be allowed even if the moderator disagrees with that!
The charter of course SHOULD be crystal clear, without the slightest possibility to generate any different convenient interpretations, by the moderators in order to do again what THEY think right.

For example the charter could be like this:

The moderators should force the members to make posts that:

Are, within reason, on the topic of the discussion board.

Are not abusive in nature.

Do not contain personal or libelous attacks on others.

Are not of questionable legal status.

Are not obvious trolling.
Other of course can be added.
The moderators should force the posters to follow these and only these rules, without creating any new personal criteria.