i think i do, now …
i think the people we see hating on indicators comprise six main groups (with quite some overlap between them, admittedly):
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people trying to use for forex indicators that were designed for other kinds of trading, such as stocks, which of course behave very differently (Ichimoku is a good example of this)
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people trying to use on much faster charts indicators that were designed for daily charts (Ichimoku is an example of this, too, but arguably it actually applies to most indicators)
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people trying to use indicators to decide when to enter trades rather than for more obvious and productive purposes (like identifying trends and directional biases)
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people who believe that if they use multiple indicators, they’ll necessarily have a higher probability of a successful outcome if some of them appear to “confirm” others (they might, and then again they might not, and it’s a complex subject!)
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people who try to use indicators for purposes very different from the purposes for which they were created (PSAR is perhaps the classic example of this)
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people who don’t do their own research and backtesting, but rely on what people on Youtube and other online sources are telling them
people who subscribe strongly to most of those six perspectives are mostly pretty unlikely to be using indicators in a way which will make them profitable, in my opinion, and some of them end up “hating”, as you mentioned
for myself, i find moving averages useful as a quick/easy/lazy way of identifying trends, and i sometimes find ATR useful to give me a quick estimate of volatility
“always” is quite a dangerous word, in this context, but even if that’s true, it’s a very long way indeed from that observation to using it to trade profitably
prices “always” eventually revert to a moving average, too (the “mean reversion theory” or “mean reversion fallacy,” depending on your perspective!) but of course the catch is that by the time it does so, the moving average itself may have moved so much that the trade is still a big loser when the price eventually crosses it