Goons Are Great posted:

We regularly make seasonal sigs in specific seasonal sig threads, we certainly will have one soon to prepare for the spooky season, so just stay tuned for that!

Below every post you have a "show signature" box which you can tick and then your lovely sig, which you can assign in your User Control Panel, will appear below every post. Only BYOB and FYAD have this box ticked naturally, other subforums have this box unticked, so you can and it will always show the sig where it is supposed to. If you want to show off your sig in other subforums, which is technically entirely possible, just tick the box below the post you want to make and it will happen, all forums are capable of supporting sigs, which is prove for BYOB's superiority over the internet.
Oh also you have to have signatures turned on in your UCP, else it will stay hidden forever more.