It would be cool to have them especially for creating custom maps, but since I'm new to this game I might be missing out on something that replaces it's role.

There are message blocks (/mb) in MCGalaxy, they don't work in quite the same way that command blocks do but can still be very powerful for some things. 

To add to Alex_'s post, if the server has https://github.com/NotAwesome2/Not-Awesome-Script then /mb functionality will be vastly expanded.

10 minutes ago, Goodly said:

To add to Alex_'s post, if the server has https://github.com/NotAwesome2/Not-Awesome-Script then /mb functionality will be vastly expanded.

Looks sick. I really want to make a horror style custom adventure map there but since I can't create more than 1 world I can't start at least experimenting to see what I can get :(

7 minutes ago, DimeDimovski said:

Looks sick. I really want to make a horror style custom adventure map there but since I can't create more than 1 world I can't start at least experimenting to see what I can get 😞

Assuming this is NA2, if you need another world to start a project then just ask staff for a rank-up.