Moop wrote: Sadly, eBay and academia are worlds apart. While it may be satisfying to educate the uninitiated in a classroom or some other worthy forum, on eBay they have a tendency to turn around and bite you on the virtual butt... no matter how far backward you bend on their behalf.
Nah, they do that in the classroom, too. But I hearya, I hearya. My last experiences selling on eBay were none too pleasant either. But, both in the classroom and online, I figure there's no reason to join the herd and let the illegitimi crudi make you into clones of themselves. Every so often someone notices.
We had a carpenter over last year repairing a patio door that had turned leaky because a support had rotted. He spent a lot of time on the job, making sure it wouldn't happen again, and during a break he got chatting with my wife. About 20 years ago, it turns out, he'd been in my remedial English class. He'd never been much of a writer, but one day we did a freewriting exercise that caught his fancy for some reason. Hundreds of thousands of exercises have gone over my desk since then, and I absolutely don't remember his paper at this point. But he said that the comment I'd written on his work was so nice that his mother had saved it, and in going through her effects recently, he'd found it and read it again.
Sometimes a random act of kindness comes back to haunt you in the end, even in the face of the roaring crowd.
My feedback isn't enough any more, now I need COAs? 
Maybe I'm getting thin skinned in my dotage, but 90% of what we collect doesn't come with any such thing how do we prove authenticity with out giving away all our sources?
). I decided to provide a link in my auctions for a better description of cels.