I have read the rules (not including creative, survival and chaos as I do not go on those servers) and will try my utmost to comply and follow them.
p.s. I think I found a typo in them, the word mar (underlined):
"Be respectful of the map and do not mar the experience or view for other players. Certain “very low quality” structures including but not limited to cobble/netherrack boxes, floating skyrails, and abandoned incomplete builds may be removed if they significantly impact the surrounding area in a negative way. Such removal will be done entirely at the discretion of server admins."