What does it mean when someone says in their post that they’re subbing?
It typically means that they are activating their subscription feature because they’re automatically set up to subscribe to each thread to which they post. Subscribing to a thread means they’ll be notified (either via email or here on the site) when there are new posts posted to the thread in question.
Here is our subscription tutorial for a lot more information.
One way to see your default subscription setting is to click on My Profile and then find the Edit Account Details button. You’ll then see:
That said, you don’t actually have to actually post to a thread to subscribe to it! Members are also able to click the Subscribe button right under a thread’s title to make subscription decisions.
Hope that helps explain what people mean by saying "subbing." It does seem odd until you know what they’re talking about!