I bet cubed could grab the attention of the modding community (it is a large one btw), by allowing player servers to run on forge. I think it would be the first player server host to offer this, and could draw more publicity in general. I've dabbled in modding a little, and if I could upload a mod or something onto a server, I think it would be fun.
I actually would like this to happen, but it is very difficult for party to install it