diff --git a/files/classes/mod_logs.py b/files/classes/mod_logs.py
index f786404b2..43f5c24fe 100644
--- a/files/classes/mod_logs.py
+++ b/files/classes/mod_logs.py
@@ -9,7 +9,7 @@ from files.helpers.const import *
 
 class ModAction(Base):
 	__tablename__ = "modactions"
-	id = Column(BigInteger, primary_key=True)
+	id = Column(Integer, primary_key=True)
 
 	user_id = Column(Integer, ForeignKey("users.id"))
 	kind = Column(String)
diff --git a/files/classes/submission.py b/files/classes/submission.py
index 55d3be57c..6dc1c714d 100644
--- a/files/classes/submission.py
+++ b/files/classes/submission.py
@@ -18,10 +18,10 @@ from .votes import CommentVote
 class Submission(Base):
 	__tablename__ = "submissions"
 
-	id = Column(BigInteger, primary_key=True)
-	author_id = Column(BigInteger, ForeignKey("users.id"))
-	edited_utc = Column(BigInteger, default=0)
-	created_utc = Column(BigInteger, default=0)
+	id = Column(Integer, primary_key=True)
+	author_id = Column(Integer, ForeignKey("users.id"))
+	edited_utc = Column(Integer, default=0)
+	created_utc = Column(Integer, default=0)
 	thumburl = Column(String)
 	is_banned = Column(Boolean, default=False)
 	bannedfor = Column(Boolean)
diff --git a/files/classes/subscriptions.py b/files/classes/subscriptions.py
index 66c7d9864..5eaa50b3c 100644
--- a/files/classes/subscriptions.py
+++ b/files/classes/subscriptions.py
@@ -5,9 +5,9 @@ from files.__main__ import Base
 
 class Subscription(Base):
 	__tablename__ = "subscriptions"
-	id = Column(BigInteger, primary_key=True)
-	user_id = Column(BigInteger, ForeignKey("users.id"))
-	submission_id = Column(BigInteger, default=0)
+	id = Column(Integer, primary_key=True)
+	user_id = Column(Integer, ForeignKey("users.id"))
+	submission_id = Column(Integer, default=0)
 	
 	user = relationship("User", uselist=False, viewonly=True)
 
@@ -20,9 +20,9 @@ class Subscription(Base):
 
 class Follow(Base):
 	__tablename__ = "follows"
-	id = Column(BigInteger, primary_key=True)
-	user_id = Column(BigInteger, ForeignKey("users.id"))
-	target_id = Column(BigInteger, ForeignKey("users.id"))
+	id = Column(Integer, primary_key=True)
+	user_id = Column(Integer, ForeignKey("users.id"))
+	target_id = Column(Integer, ForeignKey("users.id"))
 
 	user = relationship("User", uselist=False, primaryjoin="User.id==Follow.user_id", viewonly=True)
 	target = relationship("User", primaryjoin="User.id==Follow.target_id", viewonly=True)
diff --git a/files/helpers/sanitize.py b/files/helpers/sanitize.py
index ae88a4dc0..f0c6f2f84 100644
--- a/files/helpers/sanitize.py
+++ b/files/helpers/sanitize.py
@@ -105,6 +105,7 @@ allowed_styles = ['color', 'background-color', 'font-weight', 'text-align']
 def sanitize(sanitized, noimages=False, alert=False, comment=False, edit=False):
 
 	if sanitized.count(':') > 100: abort(418)
+	if sanitized.count('@') > 50: abort(418)
 
 	sanitized = markdown(sanitized)
 
diff --git a/files/routes/errors.py b/files/routes/errors.py
index 16d89c677..e38b7f264 100644
--- a/files/routes/errors.py
+++ b/files/routes/errors.py
@@ -43,7 +43,7 @@ def error_413(e):
 
 @app.errorhandler(418)
 def error_418(e):
-	return {"error": "Too many emojis!"}, 418
+	return {"error": "Too many emojis or pings!"}, 418
 
 @app.errorhandler(429)
 def error_429(e):