This has been suggested so many times, it isn't going to happen. Just save all your vouches in a notepad and provide them on request. Also, if you have a services thread, store them at the bottom of that.
I do not agree to this. All it would do is make sythe more full of things that is not required. If you want more space for your vouches save them to your computer on a notepad. Take up your computers space not the websites.
Open up notepad.
Save vouches.
Post vouches when someone asks or when you make a new thread.
Your profile should be used to describe yourself and not hold your vouches.
I think they should make a section for vouch threads where people should only make threads for their vouches, they can link people to that thread to show their vouches.