If this is what the forum is missing out on, then I'm glad I'm missing out on this one, because that mod is complete and utter shit. The fugliest XR I've ever seen in my life.
This is why mods are forbidden: Because they're all complete shit.
i'd say they're forbidden for minimizing incompatibility, optimization issues and possible copyright infringement
besides that mod in itself doesn't look that bad, it's the monster paintjob (no offense)