Actually the conclusion would be......don't pay any attention whatsoever to the comments of anyone without first knowing a lot more about their risk attitude, experience levels, initial approach & trading objectives, especially if you witness very different results from a common and/or simple structure or framework.
Unless & until you know a lot more about those extremely important & pertinent criteria, then any comments directly relating to whether a particular view or approach is profitable or not is totally irrelevant.
A poor discretionary strategy in the right (experienced) hands can be traded profitably providing the structure is robust from the outset. The odd tweak here & there from an experienced traders eye can make an enormous difference to the eventual outcome.
A solid & robust strategy in the wrong (inexperienced/novices) hands however can be steered into the ditch very easily, as is evidenced so regularly when browsing around the various trading forums.
The bottom line:
If it appears valid, robust & is based on common sense, then roll up your sleeves & see if you can calibrate it to suit your own individual style, risk attitude & specific trade objectives.