diff --git a/src/makeprompt.py b/src/makeprompt.py
index 3c02391..c726793 100644
--- a/src/makeprompt.py
+++ b/src/makeprompt.py
@@ -6,7 +6,7 @@ import datetime
 import json
 
 from src.config import curs_data, max_uses, curs_premium, gpt_3_5_turbo_prompt
-from src.utils.misc import moderate, ModerationError
+from src.utils.misc import moderate, ModerationError, Hasher
 from src.utils.openaicaller import openai_caller
 from src.functionscalls import (
     call_function,
@@ -131,6 +131,7 @@ async def chatgpt_process(
         messages=msgs,
         functions=called_functions,
         function_call="auto",
+        user=Hasher(str(message.author.id)), #for user banning in case of abuse
     )
     response = response["choices"][0]["message"]  # type: ignore
     if response.get("function_call"):
diff --git a/src/utils/misc.py b/src/utils/misc.py
index 7e16edd..bdb5a75 100644
--- a/src/utils/misc.py
+++ b/src/utils/misc.py
@@ -1,3 +1,5 @@
+import hashlib
+
 from src.utils.openaicaller import openai_caller
 
 
@@ -13,3 +15,13 @@ async def moderate(api_key, text, recall_func=None):
 
 class ModerationError(Exception):
     pass
+
+class hasher:
+    def __init__(self):
+        self.hashes = {}
+    def __call__(self, text: str) -> str:
+        if self.hashes.get(text, None) is None:
+            self.hashes[text] = hashlib.sha256(text.encode()).hexdigest()
+        return self.hashes[text]
+
+Hasher = hasher()
\ No newline at end of file