Seriously how can they possibly claim that? When we were singing "Mourinho was right, your fans are shite" continuously for 10 minutes while they didn't make a sound?!
Probably due to the fact the modern Chelsea fan is a glory hunter, the southern prawn sandwitch bridage as it were. Chelsea have gone from having no teeth, beer belly, chavs as supporters to lawyers, rich foreign travellers and other dandies for fans so why expect anything else, they are the new Woolwich (except they win stuff).