I wouldn’t hesitate to open-source projects today. LLMs don’t 'steal' code—they learn patterns from public data, much like human developers study open-source projects. Your real protection is execution and community building: open-source licenses (like AGPL-3.0) safeguard derivative work, while community contributions often outweigh theoretical risks. Most projects fail from obscurity, not IP concerns. If your code solves real problems, transparency attracts collaborators and users far more valuable than perceived LLM threats.