Thanks for the info, t3ChNo and gliridian. I'll look at the announcement post then. One other thing would be how to wear the signature. Does it have to be a standard one? I see there are some variations...
The signature varies on your bitcointalk membership level. Unfortunately, "Newbie" can't wear signature yet. You need to be at least a "Jr. Member". While waiting for your profile to rank up, I suggest you head over to the official forum too to join Bounties/Giveaways to get some Onions. It's also a good way to get to know DeepOnion and the community behind it.
BTW, the signatures are here:
https://deeponion.org/view_signatures.php