What OP is telling is true that it always happens when ever the market moves up then all bad news will flow and everyone will start to fud of market to go down but it will go up. That is why who ever listens to this news and trade always make loss. Always do own research and trade
To be very much honest, we cannot change the peoples mentallity. And it's really very hard to understand what happens with them.
I mean just look, when Bitcoin was lower no one raised their fingers, but when it's growing now a days, hate comments will surely come upwards.
I guess these are done by the ones who really faced a lot of difficulties due to Btc or just have made many losses.
Nevertheless we should ignore these things and move on.