Chat platforms are bad to manage. Because messages will be quickly floating and people will not be able to find important notes.
Example is Telegram. You can get the newest pinned message but you have to waste your time to find older pinned messages.
Discord is better because you can create sub channels for Announcements, Important, Tutorials, Community chat, Technical supports, etc.
Your website does not have pinned messages as Telegram or sub channel as Discord. Correct me if I am wrong.
I agree with you on that as it is a hassle free, and there are so much features too, I like the one that you could not send pictures in certain channels, people just don't stop sending pictures and gifs, whatever they've think of and it's great that discord has this. I was fan of telegram as it is fast but now I have migrated to Discord which allows me to chat comfortably.
If the OP is creating chats for crypto only then He/She is limiting his participants because, unlike messenger and the likes, it is generalized and not just only for crypto chats. You should put this factor, but since you are planning on the start a nice beta test is good for you have room for improvements. If that maybe the case you should hire some beta testers and pays them of their service unless they just wanna explore and give it for free.