Whether it is the moving average, Fibonacci retracement, or other technical indicators' lines, they cannot be viewed in isolation as true support or resistance. The market does not assign significance to a line just because you drew it. Your trading logic, system design, or reference indicators have no impact on the market itself. What truly constitutes support and resistance is trading volume.
Trading volume represents the actual buying and selling power in the market, and is a direct reflection of capital entering and exiting the market. Only when a large number of transactions occur in a specific price area does that area hold actual significance as support or resistance. In other words, every price pause, rebound, or breakthrough is ultimately determined by volume, not by a line on a chart.