This is a very valid concern and something many developers are starting to realize. Vibe coding works well for quick MVPs, but scaling to 10,000 users often exposes issues in structure, security, and performance. Without a clear understanding of the codebase, long-term maintenance becomes difficult. I’ve seen similar challenges even in platforms like online education where stability becomes critical as traffic grows. AI is powerful, but strong engineering practices are still essential for building reliable and scalable products.