Hey, I'm majoring in accounting and I understand some of these things! So let's see if I can explain some of it. The 16/17 million number you quoted was their ESTIMATED REVENUE for the past twelve months, not company profits/net income. That means it takes into account all the sales that Massdrop has made on the site and none of the expenses like utilities, wages, shipping, insurance, rent, and supplies expense that are ACTUALLY PAYING THE VENDORS FOR THE PRODUCTS. I made an emphasis for the supplies expense because we don't know their margin for everything being sold on this site so they could be barely making ends meet or they could be rolling in a lump(not a mountain, mind you) of money. I'd fathom a guess that their actual net income would be substantially smaller.
Second, while 70 employees can be seen as a large number, I'd consider it a small number due to the fact that they're a company that ships internationally. I would even fathom a guess that a sizeable portion of the employees are for QC and shipping for the thousands of items they receive and ship out on a weekly basis. With that said, 40 hours-a-week work schedule means that their wages expense is over $1.2M if everyone was earning minimum wage of 8.44/hour (which is a very slim possibility) which cuts into their income. Quite a few of the major European countries have even higher minimum wages.
I do understand that having to pay extra for an item when others buying the same item are exempt from it makes you feel slightly cheated. I get pissed when I buy things online since I live in California which has the highest state sales tax rate in the country when some people in other states have little to no sales tax.(God damn it Amazon laws!) We're not saying that Massdrop shouldn't care about international customers. What we're saying is that trying to force a company into accruing extra fixed expenses could spell the downfall of it.