https://en.wikipedia.org/wiki/Rambus
> Rambus was accused of shredding key documents prior to court hearings, the judge agreed and dismissed Rambus' case against Infineon. T
> On January 9, 2009, a Delaware federal judge ruled that Rambus could not enforce patents against Micron Technology Inc., stating that Rambus had a "clear and convincing" show of bad faith, and ruled that Rambus' destruction of key related documents (spoliation of evidence) nullified its right to enforce its patents against Micron.[28]
> Rambus engaged in intentional deceptive conduct in the context of the standard-setting process for example by not disclosing the existence of the patents which it later claimed were relevant to the adopted standard. This type of behavior is known as a "patent ambush".
> Ronald Black, Rambus's CEO, said, "Somehow we got thrown into the patent troll bunch...This is just not the case."[43]
See, they are the good guys after all. It came right from their CEO. /s
If someone is acting like this then shows up with a "here is a cool curve you can use", not surprising people will be suspicious. It's like that neighbor who has been suing everyone in the neighborhood, and calling the cops on kids playing outside, all of the sudden shows with a plate of cookies. People will think twice before trying a cookie.