“if you are an expert in something like uh a researcher or someone just with a deep knowledge in a topic these people have a hard time because the thing of lowering your ego thinking that you don't know everything and then asking people for their insights and questions it's just out of their world it's like I know everything about this topic why do I need to ask them question”

Experts who can't lower their ego can't build in public — period

The single non-fixable blocker to building in public is the "I'm the expert, why would I ask?" reflex. The whole loop (ask community → take feedback → ship improvement → credit the community) requires admitting publicly that you don't already know everything. Researchers, senior executives, and 20-year operators struggle with this most. If you catch yourself drafting posts without a single question in them, you're posting at people, not building with them.