Because they aren’t in multiple jurisdictions due to nature of the technology and on the grounds of neutrality.
Again - this is wrong interpretation, especially in jurisdictions with safe harbor provisions. The platform is not responsible as long as it’s neutral, does not promote/encourage illegal activity and offers ways to have the infringing content removed.
Wrong. They need to comply with the laws of every market they sell in. And not promoting illegal behaviour doesn’t give them any pass. Plenty torrent sites don’t promote it either many even do the contrary (they must have learned in the same school you did and think that changes anything).
As for giving a way for copyright owners to make a claim, it needs to be one that actually works, not just pretend.
Nope. You’re wrong. Safe Harbor provisions are present in legal codes of US, EU, UK, Canada and many others. Quite frankly I don’t know where such provisions aren’t present. Your comparison to torrent sites holds no water since there’s huge difference between a marketplace and a torrent agregator. That’s akin to comparing a shopping mall with a flea market.
Last bit:
Etsy does. So do all the online platforms I’ve had the “pleasure” of dealing with regarding copyright infringement.
Resurrecting this old thread rather than create a new one on the same topic, hope that’s okay.
Found this person selling a remix I made for thermal printers (I can identify the design touches I made such as hexagons on the underside and a customized paper guide, in addition to the stand itself)
Rather than deal with a contentious chat, I went through the steps to make a formal report via Etsy, its a LOT of steps but you can register your designs in your account and then go after multiple sellers without having to create a new entry every time, so there’s that at least. Not saying we should all register our designs there, but if it’s happening to anyone else, hopefully we aren’t powerless to stop them.
A copyright strike on Etsy is a 3-strikes - you’re out game - these thieves need consequences.
Wow, that’s good to know! Would you happen to have a bit of time to write a guide about that or have some link about it? All I could find in my quick search was ‘how to sell design on etsy’ 
I registered models but then I had to provide a government issued ID as well as any docuimentation proving ownership of the alleged copyright work.
I’m not sure how providing my legal ID provides any more info on a model that publicly is published as non commercial
Because I was a bit hesitant they rejected my claim…
I feel for the original poster. I’ve been involved with 3d printing for only about two years. And BL for a little more than a year. I’ve printed lots of stuff for my self and studied them to learn more about design. The 3d design part I find is the most difficult to learn. Took a couple of classes and watched many videos. Wanted to eventually design something and sell. However, my conclusion is that unless you have a product that can justify a patent and lawyers to defend it you have no chance. It will be copied and sold by possibly hundreds of sellers. Wish I could find another solution, but I don’t see it. I’ll be moving on from that business part and just print for myself.
It looks like that Etsy listing is still active…
What was their response to your claim?
Hi there, Sorry for the delay, I hadn’t had a chance to get back to it until yesterday, but there’s good news at the end:
I had a hiccup in that I chose “other” because I wasn’t sure of the IP type (copyright or trademark, etc.) Etsy responded telling me I needed to review their guides and resubmit as ‘Copyright’ claim.
To do so I needed to add my MakerWorld listing to my account’s Copyright records, it was an easy form to fill out with just the URL, title, description and a place to add coroborating links if you have them.
Once that was done a decision came back and it was successful, both of the listings have now been removed!
Hi there, Etsy has their own guide about it, and let me tell you - you need to read the whole thing to do it successfully, because of this there isn’t much summarizing that would be helpful imho, as I actually did it wrong the first time and they needed to tell me what to do to fix it (see other response) https://www.etsy.com/seller-handbook/article/intellectual-property-infringement/22398703823
Happened to me too. If anyone is interested, I had a thread opened where I shared my journey getting Etsy take down some of my stolen models. See post below:
awesome thanks for sharing your story too!
My wife has found things I have printed (I did not create) for her on Shein and I had to show her that a lot of the things on that site are stolen from various 3d printing sites without the creators permission. She now asks if everything can be printed 
instead of buying from there. One win for the community at a time I guess. I printed this little guy from Makerworld (Valentines I Love You Miniature Sign by HumbleBee - MakerWorld) and she found this ad on Shein…just adding that it’s spreading :(.
spent a hour or two everyday to report those thief just annoying , don’t think every designer have time for that
