diff --git a/ttadmin/common/social.py b/ttadmin/common/social.py
index 72966d8..cdad0f4 100644
--- a/ttadmin/common/social.py
+++ b/ttadmin/common/social.py
@@ -17,7 +17,7 @@ tw_auth.set_access_token(settings.TWITTER_TOKEN, settings.TWITTER_TOKEN_SECRET)
 twitter = tweepy.API(tw_auth)
 
 def split_posts_by_length(text, length):
-    pattern = '.{,%d}(?:\s|$)' % length - 1
+    pattern = '.{,%d}(?:\s|$)' % (length - 1)
     chunks = re.findall(pattern, text)
     posts = []
     post = ''
@@ -43,7 +43,7 @@ def post_to_mastodon(message):
 
 
 def post_to_twitter(message):
-    posts = split_posts_by_length(message, 140)
+    posts = split_posts_by_length(message, 280)
     status_info = None
     for post in posts:
         if status_info:
@@ -64,3 +64,8 @@ def post_users_to_social(qs):
     post_to_mastodon(message)
     post_to_twitter(message)
 
+def post_single_user_social(username):
+    message = 'Welcome new user ~{}!'.format(username)
+    post_to_mastodon(message)
+    post_to_twitter(message)
+
diff --git a/ttadmin/users/models.py b/ttadmin/users/models.py
index 213a95b..5538e84 100644
--- a/ttadmin/users/models.py
+++ b/ttadmin/users/models.py
@@ -12,6 +12,7 @@ from django.db.models import TextField, BooleanField, CharField, ForeignKey
 from django.template.loader import get_template
 
 from common.mailing import send_email
+from common.social import post_single_user_social
 from help.models import Ticket
 
 logger = logging.getLogger()
@@ -154,6 +155,7 @@ def on_townie_pre_save(sender, instance, **kwargs):
     if not existing[0].reviewed and instance.reviewed == True:
         instance.create_on_disk()
         instance.send_welcome_email()
+        post_single_user_social(instance.username)
 
 def _guarded_run(cmd_args, **run_args):
     try: