One more fix

boards/static/js/thread.js

@@ -87,10 +87,12 b' function addQuickReply(postId) {'
             blockToInsert = $('.thread');
         }
         showFormAfter(blockToInsert);
-    }
+    
+        textAreaJq.focus();
 
-    var textarea = document.getElementsByTagName('textarea')[0];
-    moveCaretToEnd(textarea);
+        var textarea = document.getElementsByTagName('textarea')[0];
+        moveCaretToEnd(textarea);
+    }
 }
 
 function addQuickQuote(postId) {