How in hell's name was that snide or rude?
In asking that a topic stays 'on topic' is hardly being snide or rude....
A clarification is a short, 'sorry this is what I meant'.
Going off topic is when it becomes the sole topic on a thread that wasn't intended for that perpose.
A little like this one now.
So if you have a problem and you see me/my post as being snide and rude, then either PM me or a Siren.