Hey, it's totally cool. Welcome to the forums, by the way!
Also, you want to make sure that you hit "View Conversation" before responding to a wall message. Otherwise, you'll post it on your own wall, and the person won't get the notification.
Hey there, I have to ask. In your TF2 Cave Story thread, where did you get that Quote skin for Scout? I believe I'm the one who made it, and it made my day seeing it again.