What else would you set it to? the unlocalised name is used for translation. It makes pretty much no sense not to use the registry name. You might want to take a look at https://github.com/Cadiboo/Example-Mod, It's a base workspace that you can just download and start modding in. Here's an excerpt from the README of the repository.
Modding with Minecraft Forge is pretty simple, but it has quite a few conventions & pre-requisites that are unique to it and are actually pretty important and vital to having your mod work properly. I’ve been Modding for a little while, and have been programming & coding for a few years now so I’ve put together an Example Mod to help new modders start Modding (in the correct way, using the right conventions etc) as fast as possible, with as little hassle as possible and with as few problems as possible.