Bug#122929: wpoison, is it okay?
I've been following the discussion, and it looks like wpoison, if
determined free, will have the dubious distinction of being the first
program in main (that I know of) with a clickwrap license that attempts
to control use. (namely, it requires every user  to display the wpoison
logo and link to the wpoison web page from their site )
Oddly enough, though, I can't find a clause in the DFSG excluding this
sort of license. I'm somewhat surprised, actually; maybe it's just
because clickwrap licenses tend to be so onerous that they fail one of
the other points anyway.
I'm not a lawyer, though, so I'll butt out now. Maybe you should ask
 and, apparently, every website which "makes reference to this
software"; I guess I'm causing lists.debian.org to violate wpoison's
license with this message? That sounds like nonsense to me..
 the intent seems to be something like the clauses that require
credit to the original authors to be given in derivatives; is there
any way you could twist a website using wpoison into being a
/-------------------- Daniel Burrows <firstname.lastname@example.org> -------------------\
| Fate always wins... |
| at least, when people stick to the rules. |
| -- Terry Pratchett, _Interesting Times_ |
\------- (if (not (understand-this)) (go-to http://www.schemers.org)) --------/