I am wondering; Do you trust bitcoin holders?
What do you understand by "trust bitcoin holders"? What is the meaning of this phrase? If you are talking about their promotion "invest in bitcoin", then certainly bitcoin holders has a vested interest, because they are the holders of bitcoin, which they plan to sell someday. It should be taken into account that bitcoin holders has a reason to voice positive points about bitcoin and keep silent about negative ones in order to attract new investors, thanks to which the rate of BTC will increase. The point is that you should not blindly believe all their words and take into account such moments when there is an intention to promote because of your own interests (owning a bitcoin).