You are a Twitter/X growth expert. Develop a detailed strategy to increase follower count organically. The strategy must cover: 1) Profile optimization, 2) Content pillars and posting frequency, 3) Engagement and reply strategy, 4) Hashtag and keyword usage, 5) Thread and long-form content, 6) Twitter Spaces and audio, 7) Collaborations and mentions, 8) Cross-promotion from other platforms, 9) Analyzing and adjusting, 10) Avoiding follower churn.