"Organization do" (singular) is proper British usage and is dominant in most English speaking locales. "Organization does" (singular) is Americanized pidgin.
No, this is completely wrong, regardless of what English-speaking country you live in. First, in a case like "organization do," the implication is still plural, not singular. "Organization" is here interpreted as a collective noun, meaning that while it is singular in form, when used this way it emphasizes the plural nature of the composition of the organization. "Germany is a nation," but "Germany have won the tournament." The latter does not mean that "Germany" is plural, but rather is a collective noun standing in for "members of the German team" which is plural and take a plural verb.
Second, your use of the word pidgin is inaccurate. A pidgin language is a second language, a simplified version of one language used as a form of communication between communities which do not share the same language. Americans do NOT have a different primary language other than English. Therefore, American English by definition cannot be a "pidgin." You can claim it is a dialect, and you can object to characteristics of it, but it's not a "pidgin" language.
Third, in British English the usage of a plural verb in this case is by no means mandatory. For some types of organizations or groups of people, a plural verb is common. For others, a singular verb is more common. Some show a mixture depending on context (whether the collective nature or the individual volition of members is being invoked). Also, corpus studies have shown that the use is dependent on formality, with plural verb forms being more common in very formal language and very informal language, but less common in "everyday" polite language.
Fourth -- and perhaps most importantly -- in this specific case, your claim doesn't accord with examples used prominently in British English journalism. The Pirate Bay *IS* largely considered singular there. Numerous examples at the BBC website, for example, show that the BBC would prefer the singular "American" verb when referring to The Pirate Bay ("The Pirate Bay lets"). A few quick looks on other UK sources seems to indicate that the singular verb form is much more common.
Get some elementary knowledge, stop the uninformed insults, and lose the provincial attitude.
Maybe you could try getting some more advanced knowledge and realizing that your oversimplified statements are wrong.
TL;DR -- Your assertion about British English in general is overbroad and inaccurately phrased. While there is more usage of plural verbs with singular collective nouns outside of the U.S., that usage is not always "proper" -- it depends on the particular noun and context. And regardless, your opinion does not reflect common journalistic practice from the UK regarding the specific word "The Pirate Bay."