I'm also a newbie to the swap, but any seeds I have up for swap are seeds I *really want other people to have*. I hope people want them and take them. I know that the stuff I have this year is not really phenomenal or anything, but I only grew them in the first place because I liked them, and I hope that someone else will like them too.
Having listened in on this great group of people for a little while, I have a feeling I'm not the only one who gets just as much if not more joy from giving than from receiving. I would definitely be happier if my seeds all got snapped up versus having any seeds left over!
In other words, I'm pretty sure the answer is: DIB AWAY! :D