What would the best place to post a new thread in which I post my history of not wearing any underwear in order of age and the specific things I did with my dick?
Well, you could spread it around here and there. Underwear here and commando threads, dicks stuff in masturbating, exhibitionism, where you like to cum, random encounters, and other fun stuff in various threads with these topics. Which I suggest you do, but first, I encourage you to write the whole thing out like you want to and post it as a "blog" on your profile. Then you can mention it in your sub-topic exposés. That way people can enjoy the whole thing in perspective.