I just learned that Invision Community removed BBcode support in 2015 when they released v4.0. There is no BBcode editor and you can only edit messages in WYSIWYG mode. As an admin you also have a more complex templates system which is not good.
Seams to me that removing the BBcode function was a bad idea. Sure it made coding the forum software easier for the developers, but what happens when your message is messed up and there's no way to see the underlying code, I suspect this would be very aggravating.
I also assume that coding add-ons is more difficult using Invision Community.