Good to see this topic is still happening. Spent the last 6 weeks in a poor internet zone (there are some left in the world, fortunately). Maybe I'll be old fashioned and send him a letter then!
There was no bolts on Sago Entree in 2006, so thats definitely been put in since, for what purposes I dont know. I can remember the climb being exciting, but not deadly.....
The DBB on iconoclast is weird. It is quite easy (preferable) to do pitch 2 and 3 together and bypass them. I think they may be there for rappelling. If you top out there are further chains- and double 60m ropes dont get to the ground. You can also not do the last 10m pitch and rappel from that ledge, and ropes may well reach the ground (???)- its been 3 years since I last did Iconoclast and recall seeing the DBB half way up then. They serve no purpose on ascent. I do use them when rapelling after doing routes well to the right eg Smike and ?Borrowed Time rather than hobble down (in the dark).
If no one else gets the energy I will be trying to get up there in spring this year and will be happy to chop the "sports" routes on the left side of the governor and the blatant retrobolting at Lindsey rocks for starters.