Cryptocurrencies that do not get guarantees from anyone even many countries are banned but experienced rapid development, of course the main key is the community, and this is what makes many big projects and top exchanges actively make communities on social media such as telegram, facebook, twitter, discord and etc.
Community continue to bring investors to those established projects that continue to develop the project. Community always have good factors when people starts to look for coin to invest their money, with solid and active community it will bring trust to new investors knowing that there are people behind who can help the project to succeed and not to fear much in times when corrections are ongoing, community will keep them believe that the project will bounce back.