It doesn't really matter to people what someone thinks about what they should do with their bitcoins or not. Bitcoin is not something that can be predicted beforehand and it can move any way it pleases. In the last 12 months if you check the prices bitcoin has gone from 3-4 thousand dollars to $20k in just 2 months, than dropped from $20k to $6k-$7k in just 6 months and stayed in those prices stagnant for another 6-7 months and right now it has gone from $6k-$7k range to $4k in 15 days.

It means bitcoin can go up, go down, stay same for long periods of time and react very quickly if needed be. Hence, people should do whatever they want, if they want to sell they should, if they think it will go down they should sell and they might be right, they might be wrong as well but it is up to them to decide, noone has future seeing machine yet.