diff --git a/website/models/user.py b/website/models/user.py
index 48bbc45..de18eeb 100644
--- a/website/models/user.py
+++ b/website/models/user.py
@@ -93,9 +93,7 @@ def generate_apikey(self) -> str:
         return self.apikey
 
     def __str__(self) -> str:
-        return "Login: {}\nLast seen: {}\nIs active: {}\nIs admin: {}".format(
-            self.login, self.last_seen, self.is_active, self.is_admin
-        )
+        return str(self.uuid)
 
     @validates("login")
     def validates_login(self, key: str, value: str) -> str:
diff --git a/website/web/api/v1/bundle.py b/website/web/api/v1/bundle.py
index eeb85bc..1430a3f 100644
--- a/website/web/api/v1/bundle.py
+++ b/website/web/api/v1/bundle.py
@@ -21,7 +21,7 @@
 from website.validators import validate_json
 from website.web.api.v1.common import auth_func
 from website.web.api.v1.common import metada_params_model
-from website.web.api.v1.common import user_light_params_model
+from website.web.api.v1.common import user_params_model
 from website.web.api.v1.common import uuid_type
 from website.web.api.v1.types import ResultType
 from website.models import Bundle
@@ -84,7 +84,7 @@
 metadata = bundle_ns.model("metadata", metada_params_model)
 
 bundle["author"] = fields.Nested(
-    bundle_ns.model("User", user_light_params_model), readonly=True
+    bundle_ns.model("User", user_params_model), readonly=True
 )
 
 bundle_list_fields = bundle_ns.model(
diff --git a/website/web/api/v1/comment.py b/website/web/api/v1/comment.py
index cb54095..6e823af 100644
--- a/website/web/api/v1/comment.py
+++ b/website/web/api/v1/comment.py
@@ -23,7 +23,7 @@
 from website.validators import validate_json
 from website.web.api.v1.common import auth_func
 from website.web.api.v1.common import metada_params_model
-from website.web.api.v1.common import user_light_params_model
+from website.web.api.v1.common import user_params_model
 from website.web.api.v1.common import uuid_type
 from website.web.api.v1.types import ResultType
 from website.models import Comment
@@ -90,7 +90,7 @@
 metadata = comment_ns.model("metadata", metada_params_model)
 
 comment["author"] = fields.Nested(
-    comment_ns.model("User", user_light_params_model), readonly=True
+    comment_ns.model("User", user_params_model), readonly=True
 )
 
 comment_list_fields = comment_ns.model(
diff --git a/website/web/api/v1/common.py b/website/web/api/v1/common.py
index b9cb196..bbb975d 100644
--- a/website/web/api/v1/common.py
+++ b/website/web/api/v1/common.py
@@ -62,8 +62,12 @@ def uuid_type(value: str) -> uuid.UUID:
     "limit": fields.Integer(readonly=True, description="Requested limit data."),
 }
 
-user_light_params_model = {
+user_params_model = {
     "login": fields.String(readonly=True, description="Login of the user."),
     "name": fields.String(readonly=True, description="Name of the user."),
     "uuid": fields.String(readonly=True, description="UUID of the user."),
 }
+
+user_light_params_model = {
+    "uuid": fields.String(readonly=True, description="UUID of the user."),
+}
diff --git a/website/web/api/v1/sighting.py b/website/web/api/v1/sighting.py
index de246d2..bc23026 100644
--- a/website/web/api/v1/sighting.py
+++ b/website/web/api/v1/sighting.py
@@ -84,11 +84,12 @@
 # Response marshalling
 sighting_params_model = {
     "uuid": fields.String(description="Sighting UUID.", readonly=True),
-    "vulnerability_lookup_origin": fields.String(
-        description="UUID of the Vulnerability Lookup origin instance.",
-        readonly=True,
-        default=local_instance_uuid,
-    ),
+    # "vulnerability_lookup_origin": fields.String(
+    #     description="UUID of the Vulnerability Lookup origin instance.",
+    #     readonly=True,
+    #     default=local_instance_uuid,
+    # ),
+    # "author": fields.String(description="Author of the sighting."),
     "creation_timestamp": fields.DateTime(
         description="Creation time of the sighting.", readonly=True
     ),
@@ -101,10 +102,6 @@
 sighting = sighting_ns.model("Sighting", sighting_params_model)
 metadata = sighting_ns.model("metadata", metada_params_model)
 
-sighting["author"] = fields.Nested(
-    sighting_ns.model("User", user_light_params_model), readonly=True
-)
-
 sighting_list_fields = sighting_ns.model(
     "SightingsList",
     {