I don't speak for DM as a whole, but I do speak as a member of a clan you are challenging.

A few reasons why no one is accepting your invite:

1. This is a bunny rabbit game. When you use language like "the sadistic fun of roasting an opponent in a really humiliating way," it sounds really, really weird.
2. You're sending this to pretty much every clan that moves. Where is the feeling of specific challenge? It's hard to feel bad in turning it down when everything that moves is being challenged.
3. A former, respectful challenge would be to privately contact a clan leader and set up a date, not post some melodramtic message like this one.
4. The way you're acting suggests that you take this clan war thing way, way too seriously.

DM is barely a clan after all. It's more just a group of people who put DM on the end of their name, or don't. We fight when we like, and probably no one is going to respond to the equivalent of a mass spamming without any individual regard.

Sorry.