You can list active plugins with./nodebb plugins
And it does have a help screen./nodebb --help
•Current PHP version = 5.6.11
•safe_mode = OFF
•memory_limit = 128MB
•upload_max_filesize = 96MB
•post_max_size = 96MB
•max_execution_time = 50 sec
•For image processing we offer GD2, but not ImageMagick.
•MySQL version = 5.5.44-MariaDB-1~wheezy
•MySQL driver version = mysqlnd 5.0.11-dev - 20120503 - $Id: 3c688b6bbc30d36af3ac34fdd4b7b5b787fe5555 $
•max_user_connections = 24
•max_allowed_packet = 16 MB
Can I use nodeBB on my server
Installing Nodebb On my server
NodeBB doesn't use a traditional LAMP (Linux Apache MySQL, PHP) stack.
From what you've listed there it sounds like you've got a hosted package (where you upload the files but can't access the server) but you'd need server access to be able to install node. redis and nodebb
You'll have to do things like SSH into the server, run install commands and other more technical things that you might not be used to if you're not experienced with Linux.
If it all sounds like it's too much then NodeBB offer a hosted package:
If you know what you're doing with Linux then grab a VPS from one of the millions of companies who offer them, and follow the installation guide.
Assuming you get an Ubuntu box: