On Monday, Jul 7, 2003, at 09:14 US/Eastern, Florian Weimer wrote:
You may not use technical measures to obstruct or control the
reading or further copying of the copies you make or distribute.
That's basically a copyleft scheme.
I think that's what it was meant to be. However, it is overly broad.
For example, given a document A.tex under the GFDL:
$ cp A.tex B.tex
I have now made a a copy of a GFDL'd work. The paragraph seems to apply.
chmod go-rw B.tex
Wow, I've now used a technical measure to obstruct and control the
reading and copying of my copy.
I'd better not access my file server over a IPSEC VPN, either!