: Touches should be well-spaced rather than clustered. Steep trendlines are prone to "noise" and are often less reliable than those with a moderate slope.
: A third touch is widely considered the gold standard for confirmation, signaling that the trend is established and not just a coincidental connection of two points. Trendline Breakout Trading Strategy
Guide to exploring the Trendline Trading Strategy - Capital.com : Touches should be well-spaced rather than clustered