I am very intrigued by this question and cannot help but wonder what brought it on... If it was a fact then I would assume there would be a clause accompanying it that one could not disclose there was an offer to begin with.
Personally, if I were in this position, it would be largely dependent on how passionate I felt about what I was doing about "getting the word out" and how much of a difference I was actually making - because there are plenty other's out there doing the same, so it does not mean it would stop completely if I took the offer. Not the answer you were looking for I am sure but this is how I see it.
Has this happened?
I would do it for fifty grand a year for life in year 2000 dollars adjusted yearly for inflation.
They pay me every year, I stay quiet for that year.
I don't think that I could keep quiet indefinitely, for any amount of money. Give me ten million now, and eventually I am going to want to start talking again. Probably take the initial payment and use it to fund anti Mormon activities years later.
However with yearly hush money I could probably keep quiet indefinitely
This would give me money to live well, and really do what I want regardless of other income.
I'd take 100k. I speak out against the Church maybe once in a blue moon, and I'd use it to pay off my medical bills and student Loans.
Also, I maybe paid 20 bucks in tithing, so I'd rather have the 100k lol.