In this thread, make one post that will hold all of your trading information. Then, you can link directly to your post in your siggy, or if someone asks you what you want/have. As your Pokemon change after trades, or your desired Pokemon change, or for any reason, edit your post. You won't have to change the url to your post, so this method will be seamless.
If you see something you like in this thread, PM (private message) the person instead of making a post like "hay I want that level 100 gliscor my friend code is 0048-1516-2342 my names JOHnnY ill give you three eevee for it ." Extraneous posts will be asked to be deleted (to keep the thread tidy).
If you want to make a profile in this thread, you must have Private Messaging toggled "On." If not, people won't be able to ask you for trades, and that'd be awfully frustrating (and wrong). Also, in your Trading Profile post, you can place other contact information (e.g. "I'm on AIM a lot"/"E-mails get my attention"/"PMing me is the best way to get in contact with me").
And now, for an EXAMPLE profile:
I'll add more as is necessary.Originally Posted by EXAMPLE