diff --git a/tallybot.py b/tallybot.py
index 6e6cf74..bb9cedc 100644
--- a/tallybot.py
+++ b/tallybot.py
@@ -9,10 +9,21 @@ from collections import defaultdict
 import sqlite3
 
 INITIAL_CHANNELS = [
+    '#meta',
+    '#team',
     '#bots',
     '#_'
 ]
 
+OTHER_BOTS = [
+    'NormalHuman555',
+    'zaphod',
+    'cirno',
+    'dustbotoBabilibot',
+    'minerbot2',
+    'sotdbot'
+]
+
 def setup_db(path):
     db_connection = sqlite3.connect(path, isolation_level=None)
     cur = db_connection.cursor()
@@ -55,12 +66,16 @@ def summarize(message, cursor):
 def recognize_inc_expr(message):
     valid_exprs = ['--', '++']
     if message.type == 'PRIVMSG':
+        # Ignore 'https?://', tildegit.org/delucks/tallybot/issues/2
+        if 'http://' in message.message or 'https://' in message.message:
+            return False
         for expr in valid_exprs:
-            if expr in message.message:
+            # Only allow incr/decr for messages that have a space AFTER the operator, or messages that end in ++/--
+            if expr+' ' in message.message or message.message.endswith(expr):
                 return True
     return False
 
-bot = Bot('karmabot', builtin_prefix='karmabot: ', use_builtin=True, connect_wait=5, initial_channels=INITIAL_CHANNELS)
+bot = Bot('karmabot', builtin_prefix='karmabot: ', use_builtin=True, connect_wait=5, initial_channels=INITIAL_CHANNELS, ignore={'nicks': OTHER_BOTS})
 DBFILE = 'tallies.sqlite3'
 db, cursor = setup_db(DBFILE)
 
@@ -98,7 +113,7 @@ def increment(message):
     topic = None
     for expr in valid_exprs:
         if expr in message.message:
-            topic = message.message.split(expr)[0]
+            topic = message.message.split(expr)[0].strip()
             if valid_exprs[expr]:
                 vote_up(topic, cursor)
             else: