I see where you're coming from and - in theory - you're right. However, some mods are right and others are just, well... wrong.
Indeed, it could be argued that the whole point of a discussion forum is to reach a consensus on what looks good and what doesn't.
Below is BarryBoy's Shed of The Year 2009. I would suggest that
most people would say it is wrong, it did win the award after all, but obviously the owner thinks it looks superb.

Wherever you stand, though, these 'modifications' [/euphemism] provide hours of laughter
