An old advice is: "If it works why change." Should one modify a chart setup or a trading strategy if it is already profitable? Does it mean that all those who are modifying their trading charts and approaches frequently are all losers?
A comment quite often made by some vendors in seminars and expos is "You are here because you have been losing and want to stop bleeding ...and I can teach you how to....." The arrogant vendor not knowing 10 people in a crowd of 500 makes such an insulting judgment of all present. Although, his basic point is correct: To get better one needs change.
Recently, while not directly implied, I heard a comment that those who change their charts and methods do so because they lose money so they keep looking for better charts and indicators.
Although this assertion may be true for some new traders (enticed by the allure of the trading) experimenting with indicators, strategies, and money management tools, nothing is more far from the truth that seasoned traders modify or change their methods because they lose all the time.
Markets are dynamic, players are dynamic, algorithms are dynamic, competition and traders are dynamic. So, whatever strategy or edge worked last week may not necessarily work the same this week. To stay on top and constantly optimizing one's edge is as important as having the capital resources to run any business.
Specially, for those discretionary traders that do not run a robot is utterly important to constantly evaluate their methods, charts, and risk management tools, make necessary changes, and use whatever mouse trap that works the best to catch that genetically engineered smart big fat rat.
Granted that some beginners are not made to be traders and will never pass the level of experimentation with charts, indicators, and demo accounts. However, those traders that have had successful trading careers and are simply keeping up with time and technology are not losers because they change methods more often than others. They simply strive to do better.