Here's my opinion: I don't think you can have a WPC-based clan *and* have it be hyper-competitive. You'll be trying to chase two different audiences, and only end up frustrating them both. If someone wants to make a new clan with a high valor entry and activity requirements, that's super awesome and I wish you all the best, but anything even tangentally related to the site should (again, in my opinion) be more geared towards casual gamers. Otherwise, people perusing the site that might not normally play see the game, try it out, join the clan, get harrangued (and possibly kicked) for not being whatever enough, and everyone ends up with a bad taste in their mouth.
Here's my idea; an advanced WPC clan, maybe 'WPC Elite' or something, for the players who *do* want to take it to the next level. This way, casual gamers have a place as well as hardcore players, and no one is slighted or pressured.