Discrepancies in pay increases, including negotiated starting salaries, are typically factored in when applicable and are used in determining the adjusted wage gap. If you have an actual study that demonstrates that what you are claiming is the case, feel free to post it; however, I've never seen a well-reviewed study that claims such.
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Allegations against Cosby were public since before 2014, with public accusations being known as early as 2005 (which I believe is the Constand case, though you could likely find sources from before that point); however, it didn't help that some media outlets like
ABCNews opted to lead their audiences by trying to make it appear as though investigators were trying to prove the sexual assault was actually consensual. It should be noted that the back-and-forth between Constand and Cosby was public and went on for over a year. In 2006, there were also publications like
People magazine who published additional accounts of sexual assault from victims of Cosby, though at the time it was mostly Jane Does who did not want to come forward publicly. It's hard to believe that more people behind the scenes were simply completely and totally unaware of his behavior given the sheer number of allegations that would eventually come out against him from such a broad range of time, dozens of victims over the course of multiple decades, as well as the fact that these allegations even spilled over into the public. Further to that point,
Hannibal Buress' joke wasn't even really a joke, he literally just told people to "Google 'Bill Cosby Rape'", so it's not like the information was even that well hidden from the public. The sad fact of the matter is that it's likely not that people were unaware behind the scenes, but more likely they either were more concerned about their own well being or simply didn't give a shit, such as in the case with people who knew a Weinstein.
Regarding how this relates to the Cosby Suite, it's possible that some people didn't know. Greg Street gave a plausible answer, as it's true that someone
likely wouldn't publicly brag about something called the Cosby Suite if they knew about the allegations; however, it's a little uncanny how the Cosby Suite is tied to Afrasiabi, who was known to sexually abuse women at Blizzard. Even if some people did not know, the connection is a little too suspect to be give everyone a pass.