l have seen him without being a part of any community or forum. One of my senior brothers is a successful investor in Bitcoin today. But he has no idea about the forum and doesn't even want to come here. When I told him about the forum, he said he was happy this way and didn't want to join anything. And I didn't force him because it was completely his own freedom. We cannot force anyone to join this community.
But yes, definitely, forums are a learning place, and by learning from this community or forum, we can expand our knowledge scope. Outside the mistakes we easily make, it takes time to correct them, but before we make those mistakes, the community or forum warns us through various discussions.