people need to want to open their minds first before anything you say or do can change their views of bitcoin and the technology. and if they already have an open mind then the "knowledge" is already out there to be found and learned, you just have to search for it. for example you can go to bitcoin wiki or other proper sources such as some of the books that are written like the Andreas Antonopoulos book called Mastering Bitcoin and learn more.
a forum is just a place to share your opinion on the matter, discuss things, or ask questions about things you didn't understand. it is not a place to learn the basics in my opinion.
Well, I cant disagree that those, who want to learn can do it without any problems. There is a plenty of information all over the internet. Still, it doesnt mean that we shouldnt share our opinions or knowledge anymore. The more information you can get, the better can be your strategy.
by connecting to the internet, we can find any information or knowledge that we want, we can find more about bitcoin itself or another information related to cryptocurrency. like you said, the more we learn, the more chances for us to get the information especially in how to make money from cryptocurrency. sharing knowledge in the website and forum can also help people to find the information so it will give another opinion from many people about the things that related with cryptocurrency and bitcoin.