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?
They might be successful too because just as this forum their are more forums that extensively talk about Bitcoin or crypto currency in a whole but just as you said about some people not believing in progressing or benefiting when they share the information or knowledge with someone else they might just keep it on a low and be gaining much for themselves and by themselves..