Eh, guess we're going to agree to disagree there. Dollar figures having two decimal places at the end is pretty much a standard. If they included 3, yeah, that would reek of shiftiness. On top of that, all of the press releases I see don't even include the full amount written out, just "$3.2B".
This is known as "rhetoric". The art of making a point. For sure the zeroes are being written out in full to make the number look more impressive. And the cents are given for exactly the same reason! What else would they be there for?! Writing out large numbers in full is a valid tactic to make a point, just as is hiding all those zeroes away behind an abbreviation.
decimals doesn't have commas, if you want to add 12 digits of precision then you should have to write: $3,200,000,000.000000000000 , also when writing down a money amount, those two extra digits are for the cents(exactly 2 digits of precision), It would be ultra weird to write with 1 or 3 digits of precision, or zero for that matter.
I say it is intellectually dishonest because it reads to me as a clear attempt to make the number appear more impressive.
Borrowing from Wikipedia, "intellectual honesty":
It would still be accurate to say it was a $3,200,000,000.000,000,000,000 valuation, but I hope you will agree this is misrepresenting information.