I was and I do. My company (I was the CEO and single founder) was acquired by LinkedIn. However, "verbal offers" are very tenuous ground. You'd have to prove that the offer was believable, and that finding out was not a waste of time. Also, nobody said that he avoided a formal offer. Who knows who was the person who (allegedly) was handing a term sheet.
By the way, a term sheet is usually first sent over email, as it will be redlined several times before anyone signs it. As the CEO of a startup, a printed term sheet without the corresponding email trail would be very suspect.
And that's why there is an investigation, not a trial. There is probably some indication of wrongdoing but insufficient evidence for prosecution. A verbal offer may be difficult to prove, but far from impossible if there were witnesses or some sort of trail.
Nobody has said there is proof of anything, but the government has grounds for suspicion. That is all. Presumably an investigation is warranted.
By the way, a term sheet is usually first sent over email, as it will be redlined several times before anyone signs it. As the CEO of a startup, a printed term sheet without the corresponding email trail would be very suspect.