I'll say the same thing I always say when I see threads about buyer feedback not being left.

I don't mind whether I get seller feedback, or not. If I get what I paid for in a timely manner, great, the seller has fulfilled their part of the deal as far as I am concerned. If any issues are dealt with politely...even better.

I buy a lot and am away often enough to have parcels pile up.

That means, by not opening them pronto...I am to a certain degree trusting the seller to be dealing with me fairly.

I may not, leave feedback for everyone, but I do try to leave it for lower feedback sellers to give them that boost of new positives.

but

would the seller rather miss out on the feedback and get that sale? I tend to be a repeat buyer, too.

so if feedback for the seller was made mandatory with some way of enforcing it, then I'd be gone.

I have sold here and to respond to the karma comment above: I liked it when I received a nice positive, but a smooth sale without feedback didn't give me any angst. List, sell, get paid, send. I understand the importance of building a good reputation which is why I do my best to leave it for those starting out here...but I hate getting umpteen reminders for it.