Be happy a thread of yours generated some good discussion even if it drifted slightly off topic. And BTW you can only delete your posts, the thread will still be here.
I red the discussion on gri-gri versus other device so many time that it is not a discussion...so it can not be good. When people are drunk and they don't know what to say, they throw a lot of statistic about what they read here and it don't serve any thing else than giving the idea that they are good climber because they can rewrite what they wrote before.
belaying from a flex flake by obligation and describing the set up to be safe had been a better choice for that thread...as it can happen when someone climb british where coming at canon. anchoring the flex flake with stopper...doing an hanging belay instead of using the ledge to be safer, extended the anchor with the tag line to be in a good position...
and there is still accident with the gri-gri what ever you wrote