Some colleagues and I are creating a database of LaTeX based graphs (TikZ, PgfPlots, etc) to be used in Economics (by students, academics, professionals, etc). This will be an online database, freely accessible to anyone. Code will be licensed under open-source license.
Although some graphs are being done by us, we are thinking to taking some examples from this site. As far as we understand, this is a valid/legal action, as long as we license the content using CC. I'm a bit puzzled however by the following phrase in the ToS:
You may download or copy the public Network Content, and other items displayed on the public Network for download or personal use provided that you maintain all copyright and other notices contained in such Public Content.
We can provide the code with that license, but just as anyone can come to this site and use the code for commercial or other uses without proper licensing, they can do the same in our case. But that is surely not our responsibility, is it?