Herman&Chomsky provide some good insights, but there are major shortcomings and points where they are outright false. Among others, it is often cited by anti-democratic propagandists. China uses this book, it's among the very view Western books that are not censored in China, there is even a Chinese translation. They use Chomsky&Herman to criticize democracy and human rights (China's criticism of capitalism is sort of a pretext).
Tankies and other communities use it as some sort of ultimate truth. This is rubbish.
Chomsky is even conveying pro-Russian, anti-Ukrainian viewpoints in the meantime (here is an older article, I am sure you know Chomsky's hypotheses).
Don't get me wrong, but sometimes I am wondering how many of those citing the book have really read it.
As someone already wrote in another thread, the moderation in this community seems to follow personal preferences rather than justifyable rules.