Did you know?

[Napkin]

...that you can mark all posts in a forum as read by double-clicking the forum's icon?

[Eifeltrampel]

Now I Know

[Grimm]

If you want to quote from more than one message in a thread and you've already hit "quote" on one of them, you can go down to the list of messages below the composition box and hit "quote" on all the other messages you want to quote from. Their text will appear quoted in the composition box.