Despite the message on his site that "If you’re really offended by having your work posted to such a website, please email us with a polite request to have your posts taken down." he has no intent of following through with the promise of respecting artists' wishes.
In fact, when another artist politely requested he take her work down he started harassing her friends via IM and her via FA uploads calling the copyright holder a jerk for not letting him do what he wants with her art.
As further proof I offer up the short e-mail exchange I had with him when I found out one of my pieces was up on the site as well.
Arc's replies are in italics because he doesn't sign his e-mail.
______________________________ Sep 5 - Topic: Redistribution of my art
It's come to my attention that someone has reposted one of my images to your site.
As copyright holder I request this image be removed from your database.
The image in question is here: http://e621.net/post/view/1522
Can I ask why?
Can I ask why you want to know why?
We like feedback on removal requests so that we can work to address any
problems and so improve the site.
My reason is that it was reposted without my prior knowledge or approval.
A week later I had received no reply what-so-ever and the image was still up on the site.
At this point I contacted the hosting provider, a German company Hetzner Online AG.
They replied within the day and the image was finally removed.
Topic: Copyright Violation, EUCD notice.
Hetzner Online AG
To Whom It May Concern,
I am writing to you to avail myself of my rights under the European Copyright Directive. I wish to report an instance of what I feel in good faith is an instance or Copyright Infringement. The infringing material appears on the Service for which you are the designated agent.
1. The material which I contend belongs to me, and appears illegally on
the Service is the following: [description of reposted material]
2. The material appears at the website address: http://e621.net
And can be found via the search tool at this specific location:
[http://e621.net/* whatever the direct link to your work is]
For style reference please refer to my homepage: [homepage url, preferably url to the same image hosted in a location where you have personally uploaded it]
Additionally the site clearly states my real and/or artist name (remove what doesn't apply, as well as this note :P) as being the creator (and thus copyright holder) of said image(s).
3. My contact information is as follows:
[Name, address, telephone number, e-mail address]
4. I have a good faith belief that the use of the material that appears on the service is not authorized by the copyright owner, it's agent, or by operation of law.
5. The information in this notice is accurate as the copyright owner. I declare under the perjury laws that this notification is true and correct.
Edit: Comments frozen.
The site is down, time to move on and get a life people.