We have heard from many community participants, and consensus is quite rough on 
this topic.  The IESG discussed this thread and reached two conclusions:
(1) Rough consensus: an open and transparent standards process is more 
important to the IETF than privacy of blue sheet information.
(2) Rough consensus: inclusion of email addresses is a good way to distinguish 
participants with the same or similar names.
Based on these conclusions, the plan is to handle blue sheets as follows:
  - Continue to collect email addresses on blue sheets;
  - Scan the blue sheet and include the image in the proceedings for the WG 
session;
  - Add indication to top of the blue sheet so people know it will be part of 
the proceedings; and
  - Discard paper blue sheets after scanning.
On behalf of the IESG,
  Russ