Because, some people only care about crypto going down and do not care when it is going up. I do not know why people are like that, maybe it is a personal thing I am not sure but there are many people like that, they are just very happy whenever bitcoin goes down. Maybe they lost some money here back in the day and they want others to lose as well, maybe they didn't make any profit so they want nobody else to make a profit as well, maybe they were too late and hate people who were early, I really do not know why they hate bitcoin but they do.

The most common one I hear for hating it is "Because you are not creating anything and not helping the world" but the reality is that we have a shit ton of stuff in the world that is not helping or creating neither, I mean we are talking about finance world as a whole and they rarely ever help anyone. So, basically it is just another bear caller who loves to watch people lose money, those are very petty and sad people.