Hi,
I double checked with Shapeways:
"At the moment we are not looking to change the interaction between the seller and the buyer to send on the buyers information to the seller.
Shapeways differs from Etsy, Ebay and Amazon in that we are fabricating and providing the product to the buyer. Shapeways handles quality control and complaints.
In this way we can offer consistent customer service and user experience across multiple shops."
I stated as reasons why I would like to have customer information (as also mentioned in this thread already):
The first thing I would want to know about my customers is demographics.
Where are my customers coming from (country at least)?
I'm targetting certain markets, but in Google Analytics I see many hits from different markets...
but I can't map this back to the sales.
Also you would like to know if I have repeat customers or new ones mostly; this to steer the marketing efforts.
It might also be interesting to know, how they found the shop (but Shapeways doesn't know that currently either...so would have to ask I guess); again, to steer the marketing efforts.
Above info can be made available in an anonymous report form also, thus without revealing the actual (name) details of the customers (to e.g. protect privacy or maintain the "consistent user experience").
If I had many customers, you might want to consider a newsletter or so.
Or invite them for feedback / a poll related to new product development (new model examples).
I'm aware however above can be done via e.g. a Facebook group/page also.
But that requires additional action from the buyer again of course.
Cheers,
Robert