Common quote from Robin Jones Gunn, you may or may not have heard about it, but is "You go alone, you go fast, you go with people, you go far". Have you met anyone who knows about bitcoins, and then you tried to introduce them to this forum to come join this community, but they refused? I like to see what maybe their reasons where.
I am just over relating that quote to bitcoins; do you have the opinion that lone investors who are not members of any kind of forum or community about bitcoins or cryptocurrency can still be very successful investors?
I had encountered few people like that in my local area. they are bitcoin traders regularly trading bitcoin and one of them is even trading signal provider, I would've shared his Trading View profile but not sure if he likes it or not.
Anyway. they had different reasons. and don't have any reason but simply not interested in Bitcoin.
Maybe they don't find bitcointalk interesting. or maybe it doesn't provide them the type of value they want. I even told one of them that they can make money from bitcointalk but he refused and said he can't make good posts.