No it isn’t retroactive :dozing: If you look at my first posts, they don’t have any signature.
http://www.casinoaffiliateprograms.com/bb/deluxecasino-net-appraisal.9418.html?
After you add one, you can alter it, and the changes will reflect in all your posts.
But before you add your first signature, all previous posts will stay without it. But this isn’t important 