No, you can't edit, even simple spelling mistakes get reverted regularly. It's designed to be an overly byzantine bureaucracy to discourage edits so a relatively small group can maintain control. Remember if 100 million people made meaningful contributions daily there would be no way to maintain that control.
Arguably that works well, but it's almost meaningless to call it a wiki.
Arguably that works well, but it's almost meaningless to call it a wiki.