haha true about the meds, however, they are after liquidity and areas with clusters of stops would be attractive to all kinds of charlatans so I don't blame anyone for hiding their SL or TP.
The stop hunt spikes we were seeing 10 or so years ago are not common these days but I have seen significant differences in bar prices when there is market turbulence and the usual broker excuse is that forex does not have a central exchange so prices can vary.
I doubt that market turning in his favor will be impacted much by a hidden SL but in my opinion a visible TP could work in his favor if his positions are large enough and they happen to be close to a liquidity zone. There are many ways to trade but I doubt that a trader with a large capital would be using SL's
Every trader wishes to be more powerful with his knowledge experience and skills, he may not wish to showcase his talent to the public out there so it's possible that you won't know how do they use their profit loss ratio with stop loss strategy.
agree with you, by and large to be knowledgeable, when you trade in Forex without Stop Loss your condition as like a ship in deep ocean without a rudder.