JP i too appreciate your asking how to sort stuff, and jointly seeking comfy standards. Especially on calm, clean, topical threads that the main focus would be sorting to best category.
i too think it would me more functional if this thread stays here, traffic wise kind of due to mix wise.
Traffic wise, so it is seen more,
mixed in so that there isn't one barely visited temple of gloom.
This is where an indexed table collecting hard/ best topics categories would come in to supercede/augment a search. Categories of injuries, new to site, friction hitches etc. posts would come in. Also as perhaps the largest, best and indexed info packed, dynamic climbing/tree site on the web. i would only think that such a resource would draw in more minds and views, especially with special, world authoritive pic section of knots etc.
As in double tie ins, i think that failsafe double checks are required, a climber naturally looks down a lot, a groundie needs to invoke that second check, and learn to look up. Otherwise it is like making any other overkill (awe come on can't i joke that one around!) safety less of what it is- double tie in, double half hitches, SWL, safe habits and supervisor, education and practice etc.