They also forget to use Bitcoin as a benchmark from where the value of their capital is based from? Why? Because if a "trader" can't outperform Bitcoin, then why be a "trader"? Simply be a HODLer and try add units in your capital in Bitcoin by buying the DIP and/or DCA.
They are in belief that being a trader is the way to riches but they don't realize that it's the hardest path and we've got some easiest strategy and that's effortless through DCA.
Being a holder and just adding up more bitcoins by having buying is what they just have to realize that they'd able to see why we keep on telling and suggesting people to do it.
No need to get into the battle of hassle with other traders when you can HODL and DCA.
It cannot be denied that buying and holding bitcoins is the safest way to invest in bitcoins, but for those with the ability and skills to trade, trading to increase the amount of bitcoins is not so bad. Just because we can't win at trading doesn't mean everyone is like us. I have a friend who makes a living as a day trader and so far he's been fine. It can be said that everyone has different skills, so we should know who we are and what our strengths are so that we can make appropriate choices that bring the best benefits to us. Don't imitate others just because they are successful that way, each person has a different path to success.
I don't think they were trying to conclusively decide for everyone, they where probably mapping out dangers from their own perspective on the dangers, stress and anxiety to be faced while doing more of trading than holding. What now causes majority people to trade is due to greed and lack of patience to hold for long time, they quickly want to earn profits not even test running if they are capable of doing it and we can see some of them at the very end left with nothing to talk about.