Someone  posted some of my pictures on flickr. Suppose he bought them (which I think he did), may he publish them on flickr? I looked in the Flickr TAC but couldn't find anything about posting pictures from others. Off course if you buy pictures you can put them on your website, but what about putting them on flickr?

I haven't checked Flickr in a while but found one of mine. I just sent a DMCA notice to Yahoo - in the past they've been very prompt in removing infringing images.

None of the stock agency licenses (barring that wretched Getty deal with Google Drive) permit redistribution, which is what they're doing when they allow a download from their flickr account. In addition, my infringer was claiming copyright of the image!!

Another infringement you sometimes see is they post at a huge size unmodified - the licenses permit use on web sites up to a certain size (used to be 800 pixels on the long edge but I think most agencies it's now about 1200 pixels) unless the image has been modified - such as text superimposed on the image.

If you send in the takedown notice - there's a link on the bottom of each image page for Copyright/IP Policy - be sure to follow the language exactly in your e-mail. The first time I said I knew that the use violated xxxx and the instructions say to indicate that you have a good faith belief that xxxxx. Yahoo sent me back e-mail asking me to state that I had a good faith belief

I don't deal with the uploader with Flickr violations. If it's just one image and it's an oversight or they didn't understand the rules, they won't lose their account or suffer in any way and the fastest route to removing the image is sending the DMCA takedown notice to Yahoo.

If it's someone who has uploaded a ton of stuff (in the past I found my images among a large group of iStock images in someone's photostream) they deserve to be handled severely so they don't repeat the offense. In that case I contacted iStock's compliance enforcement (although now, I'm not sure it would do any good as I think lots of things have changed in the interim; I hear lots of reports that nothing gets done - including the istockreseller site still being there months after they got the information on it)

Yup, I've got Flickr to take images down. They 'suspend' the image almost immediately and remove it quickly.

(Veering OT) Pinterest now has a thing whereby if you file a take-down you can also ask for a strike to be recorded against a pinner. So many strikes and they're out, allegedly.

Being in the computer business I have run into many people who have the impression that once they buy a piece of software they can share it with their friends and family. Nit too many people seem to able to read the terms of use and or do not care if they are pirating. The worst infractions in my opinion are people or businesses who feel this way

I don't deal with the uploader with Flickr violations. If it's just one image and it's an oversight or they didn't understand the rules, they won't lose their account or suffer in any way and the fastest route to removing the image is sending the DMCA takedown notice to Yahoo.

If it's someone who has uploaded a ton of stuff (in the past I found my images among a large group of iStock images in someone's photostream) they deserve to be handled severely so they don't repeat the offense. In that case I contacted iStock's compliance enforcement (although now, I'm not sure it would do any good as I think lots of things have changed in the interim; I hear lots of reports that nothing gets done - including the istockreseller site still being there months after they got the information on it)

++++++++++