The fun of a swap is it is open to all skill levels.
No one is going to be hyper because they got a block that is a little wonky...or dang they'd be slinging my name all over.
I use the swaps as a testing ground for new techniques so every one is a guinea pig project.
I've gotten a few wonky blocks and am so glad they were sent because that person didn't give up and was hopefully having fun.
Remember...there's no such thing as a perfect quilt...never ever anywhere anytime.