[NameNickHN]

If US based startups would start globally instead of only nationally, they wouldn't have the "problem" of copycats. It's the same with movies. If the movies would come out globally, people would have less incentive to pirate them.

And even if there are copycats, so what. I didn't hear ebay complain when they bought their German equivalent. It saved them a lot of time and know how, if not money. And Facebook certainly doesn't complain about their German "competition".

I'd say live and let live. Also: If you can't beat them, just buy them. Otherwise ignore them.