It took me some time to understand the real purpose of your post. Actually, you are saying that a person who wants to buy and sell some token must perform some type of analysis first, and he should avoid abrupt buying and selling. I don't think anyone here is doing excessive buying and selling. If a person is buying BTC just for holding purposes, then doing impulsive buying (DCA) might not be wrong to do.

But of course, a proper objective and plan are compulsory for a person to make a profit, otherwise, all he will get is nothing. The only thing that we all should do is do a fundamental analysis, because in that way, we cover most of the general news circulating in the market. Most of the time, those news stories make a person do dumb things, and the person loses money too. So, thinking before making a trade is obviously a necessary thing.