What are your biggest challenges on building a community for your startup?

Hey there, Are you a startup founder, product manager, or marketer? I'm currently working on a project aimed at enhancing community management for startups. My goal is to gather insights into the challenges and pain points you've encountered in your journey, not looking to sell anything just wanting to understand how things work. Your experiences are valuable, and I'd love to hear about them. Would you be open to sharing? Thank you in advance.