GPLv3's secretive Additional Terms

[opensource.*.nwo at neverbox.com]

GPLv3's possibly most secretive addition is section 7. Additional Terms. 
The GNU site and the online world in general pretend like it doesn't 
exist. I'm especially baffed by the statement "when you convey a copy of 
a covered work, you may at your option remove any additional permissions 
from that copy."

GNU's attitude towards this section (not mentioning it in one word in their 
site except in the license itself) made it almost impossible to find 
software authors who use it. The few who do, write crazy things like "by 
section 7 I am cancelling section 6 with its leftover requirement."

Can you deal with this section in your FAQ to help stop such 
disinformation? My main desire is keeping my name attributed (section 7's 
item b) in the footer of my web apps, unless agreed otherwise.