diff --git a/backend/marketfeed/migrations/0008_post_disliked_by_alter_post_liked_by.py b/backend/marketfeed/migrations/0008_post_disliked_by_alter_post_liked_by.py
new file mode 100644
index 00000000..c5654804
--- /dev/null
+++ b/backend/marketfeed/migrations/0008_post_disliked_by_alter_post_liked_by.py
@@ -0,0 +1,29 @@
+# Generated by Django 4.2 on 2024-12-13 18:40
+
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ("marketfeed", "0007_portfoliostock_quantity"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="post",
+            name="disliked_by",
+            field=models.ManyToManyField(
+                blank=True, related_name="disliked_posts", to=settings.AUTH_USER_MODEL
+            ),
+        ),
+        migrations.AlterField(
+            model_name="post",
+            name="liked_by",
+            field=models.ManyToManyField(
+                blank=True, related_name="liked_posts", to=settings.AUTH_USER_MODEL
+            ),
+        ),
+    ]
diff --git a/backend/marketfeed/serializers.py b/backend/marketfeed/serializers.py
index 2de4bfe7..28763e94 100644
--- a/backend/marketfeed/serializers.py
+++ b/backend/marketfeed/serializers.py
@@ -75,7 +75,7 @@ class StockPatternSearchSerializer(serializers.Serializer):
     limit = serializers.IntegerField(required=False, default=10)
 
 class TagSerializer(serializers.ModelSerializer):
-    user_id = serializers.PrimaryKeyRelatedField(queryset=User.objects.all())
+    user_id = serializers.PrimaryKeyRelatedField(read_only=True)
 
     class Meta:
         model = Tag
@@ -152,7 +152,7 @@ def update(self, instance, validated_data):
 
 
 class CommentSerializer(serializers.ModelSerializer):
-    user_id = serializers.PrimaryKeyRelatedField(queryset=User.objects.all())
+    user_id = serializers.PrimaryKeyRelatedField(read_only=True)
     post_id = serializers.PrimaryKeyRelatedField(queryset=Post.objects.all())
 
     class Meta:
diff --git a/backend/marketfeed/views.py b/backend/marketfeed/views.py
index 9996c226..a4b4bfa2 100644
--- a/backend/marketfeed/views.py
+++ b/backend/marketfeed/views.py
@@ -164,7 +164,7 @@ def retrieve(self, request, pk=None):
     def create(self, request):
         serializer = self.get_serializer(data=request.data)
         serializer.is_valid(raise_exception=True)
-        serializer.save()
+        serializer.save(user_id=request.user)
         return Response(serializer.data, status=status.HTTP_201_CREATED)
 
     def update(self, request, pk=None):
@@ -222,9 +222,6 @@ def user_portfolios(self, request, user_id=None):
     
 
 class PortfolioStockViewSet(ViewSet):
-    """
-    A viewset for adding and removing stocks from a portfolio.
-    """
     permission_classes = [permissions.IsAuthenticated]
     serializer_class = PortfolioStockActionSerializer
 
@@ -288,9 +285,15 @@ def get_permissions(self):
         return super().get_permissions()
 
     def list(self, request):
-        posts = self.get_queryset()
-        serializer = self.get_serializer(posts, many=True)
-        return Response(serializer.data)
+        queryset = self.paginate_queryset(self.get_queryset())
+        data = []
+        for post in queryset:
+            serializer = self.get_serializer(post)
+            serialized_data = serializer.data
+            serialized_data['tags'] = [{'id': tag.id, 'name': tag.name} for tag in post.tags.all()]
+            data.append(serialized_data)
+
+        return self.get_paginated_response(data)
 
     def create(self, request, *args, **kwargs):
         serializer = self.get_serializer(data=request.data)
@@ -325,9 +328,19 @@ def destroy(self, request, *args, **kwargs):
     
     @action(detail=False, methods=['get'], url_path='posts-by-user/(?P<user_id>[^/.]+)')
     def user_posts(self, request, user_id=None):
-        posts = self.queryset.filter(author=user_id)
-        serializer = self.get_serializer(posts, many=True)
-        return Response(serializer.data)
+        queryset = self.queryset.filter(author_id=user_id)
+        if not queryset.exists():
+            return Response({'detail': 'No posts found for the specified user.'}, status=status.HTTP_404_NOT_FOUND)
+
+        paginated_queryset = self.paginate_queryset(queryset)
+        data = []
+        for post in paginated_queryset:
+            serializer = self.get_serializer(post)
+            serialized_data = serializer.data
+            serialized_data['tags'] = [{'id': tag.id, 'name': tag.name} for tag in post.tags.all()]
+            data.append(serialized_data)
+
+        return self.get_paginated_response(data)
 
 
 class CommentViewSet(viewsets.ModelViewSet):