essentials/Essentials — comment on commit 435219bab6bc20a53d1c15526de6707fb986b1f7
File:  line 0
By khobbits:

The restriction is so that you can limit which items can be enchanted, and is optional.

By having a separate sign, it also makes it more apparent to users, what the sign is actually doing (it has [enchant] at the top).