diff --git a/rfcs/function-debug-id.md b/rfcs/function-debug-id.md
index d997a404..b98b8af6 100644
--- a/rfcs/function-debug-id.md
+++ b/rfcs/function-debug-id.md
@@ -14,8 +14,6 @@ When debugging, it is often useful to compare identity. Usually `print` will pri
 
 `debug.id(value: string | userdata | table | thread | function): string` always returns the identifier unique to that value, and is not possible to override. The identifier can be reused after the value associated with it is garbage collected.
 
-While tables and userdata have individualized metatables, also allowing functions and threads to be passed to `debug.id` would let their type-level `__tostring` be redefined. Strings are useful to accept because of long, similar strings.
-
 ## Drawbacks
 
 Identifiers being reused has the potential to confuse humans reading them.