Does Mr. Brin deny that he is Russian?
Knowing how Americans treat immigrants in the US I'm sure he has many times not revealed he's from Russia. His accent reveals it though.
Does Mr. Brin falsely claim that his native language is English?
He's trying his best to lose his accent and many people actually think his native language is English (which he will not deny if he doesn't have to).
Does Mr. Brin sell essays?
No, but he allows his search engine to be polluted with sites that sell essays.
Does Mr. Brin hire cheap, unqualified laborers to perform tasks for which they are woefully unqualified, yet intentionally misrepresent their skills to the public?
Yes he does, as any American corporation do. He hires thousands of workers from countries like China, India, Russia, Pakistan and others who quite often have difficulties to read instructions in English. For the local country standards the hired workers are just fine, BUT for the American standards they are far away off with their qualifications (starting with English language proficiency).
1) company nationality
Google is a 'multinational company' just like most essay writing companies, including bestdissertation.com. By saying Google is a 'multinational company' Google doesn't lie because Russian+American=Multinational. Essay companies are multinational too, for example:
1) American+Pakistani=Multinational
(or)
2) American+Pakistani=Foreign
The result depends on whom you're asking. If you're asking WritersBeware then when he's talking about his own company he claims the number 1 above is true. But when he's talking about other companies, the 'truth' is always the #2.