Re: how can we delete a page which I consider as dangerious?
I thought that might be your reasoning  it's always better to explain yourself. It doesn't always get you your way, but it can save you a lot of trouble. Remember, of course, that Wikipedia is not censored, and that as the content disclaimer states, Wikipedia may contain offensive material. I may personally hate Hitler, but I revert vandalism and blanking of his article on sight, because I feel it would be a terrible folly for the next generation to forget some of those lessons. Our first duty here is to build an encyclopedia  if these are bad people, then we should let the facts speak for themselves, and we should have faith in our readers to reach the right conclusions. I can't say that I like these people, or that I can't see where you're coming from, but in my eyes we shouldn't be blanking the page  they exist, and if they're notable, we should have an article on them, in my opinion. Hope that makes sense?