Vouches don't mean anything.
The point of linking them to your thread, can be countered to just have you linking them to your profile.
Another section for vouches would result in a lot of unwanted SPAM (as posts could not be tallied, and it'd be more work for moderators (which they don't seem to want)).
Designing your vouches is pointless. They're vouches, it's not meant to be pretty. In fact, most people don't even list what the person said when they vouched, they just list the people who vouched them. Sure, one or two quotes is nice, but when you start having 40+ people vouching you, that many quotes gets to be a bit much. So just list the people who vouched you in your thread, it's cleaner and quicker.
The point of vouches is simply to show that you've traded before. They don't make you any more trusted, or less trusted (unless they're fake). So generally it doesn't matter how many vouches you have, but just the fact that you have been trusted before is enough to maybe trust you again.
I say no.
The SPAM forum hated the vouch threads, and we still do. If people want your vouches, link them to vouch themselves, send them over in notepad, put them in your profile, or put them on the first post of the thread of whatever service or sale you have.
Thanks for listening 
