I think every person has the right to claim they have information about who is the highest winner of BITCOIN But in my opinion they won't tell you how much they have bitcoin ...
Why? individually maybe they don't want to be too publicly released, maybe another reason they are afraid of being taxed well we know that some countries have started taxing bitcoin and I think it's natural to remember the very rapid development of bitcoin
It is for their own security, if they don't want to disclose how much Bitcoin they are holding at then it is their choice and we cannot force them to tell it and they are not oblige to tell those information to us too, so I don't see anything wrong for that, whether they are lying or not, it doesn't matter at all, what we should matter is what we are holding on our own.