The reality of support and resistance trading
Traders who draw thin horizontal lines on their charts in order to make trades off them, usually find themselves in one of the following two scenarios:
Price turns ahead of their line and they miss the trade
Very frustrating and traders tend to be more aggressive on their next trades which results in a downward spiral.
Price spikes through the S&R line
When this happens, traders tend to become too scared taking to take a new trade or they set their stop loss orders further away which results in a decreased risk reward ratio.