I think there's a bunch users already create similar topic about "DCA, only invest that you can afford to lose and Bitcoin history"

It seems there's no new discussion and everyone keep repeating the same discussion, almost everyone already know that and it's nothing need to remind everyone. If they're panic, then it's good since we can buy their coins, if they're not panic, we can't buy the dip lol. So I'd thanks for those newbie who panic and then sold their coins for cheap price.