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?
Yes you can be successful just by buying and hodling Bitcoin, you don't need to be a part of any community to benefit from investing in Bitcoin and that's what makes Bitcoin investments very special. You can invest in Bitcoin and nobody gets to know. You can be private, have anonymity and make profits by investing in Bitcoin. You don't need people or collaboration to make profits from Bitcoin. What you could say is if you want to be actively in the crypto industry and get information about developments going on in the industry then you need to join communities but if you solely want to just invest in Bitcoin you can do that and be successful.
There are many of Bitcoin investors that aren't on the forum and they're doing quite well from just investing in Bitcoin and hodling their investment in a non constodial wallet and yet there are many people on the forums that aren't doing very well because they're getting mislead by other members that encourages them to invest into altcoin that aren't guaranteed investments.
The forum and other community has it good and bad side, the good side of the forum is that it can help you get information on potential scams in the industry to avoid and investment advices that can be beneficial to you but it can also mislead you into thinking you're investing into a blue chip project when they get advertised on the forum.