Luckily I have a thick skin and don't get upset easily, but it really annoys me when someone has an online shop, albeit through Shapeways, but only offers a product in one material which produces poor results and when questioned assumes everyone knows they can ask you for it in another as that 'is the norm'. I believe it is perfectly reasonable when ordering a print to assume that the designer has checked to see if it works rather than leave it up to the purchaser to effectively pay for a test print.
Not trying to start a war as I mentioned in my message to you, your designs are a great addition to the hobby, but I know of other designers that get the hump if you contact them and ask if they could change this or that so don't tell me 'most ask, that is the norm' as it just isn't.
If you re read our conversation over on Shapeways you'll note I wasn't grumbling, just asking a question to which you were very defensive/dismissive and you only gave a constructive answer when I did start grumbling.
Thank you for now making the 'N' stuff available in FUD. I have sorted it out with Shapeways and am now getting them printed in FUD.