My god I can't believe I read that entire thread
anyways I've been wanting to do this method for a long while now. Since I've started brewing I've hated the cooling of the wort. I live in Colorado and it's always bothered me wasting all of that water, water is precious here in the west. I've already ordered my plastic containers and can't wait to give this a shot. When I started brewing I thought I needed all of the latest and greatest equipment to brew great beer. I was wrong. I started out extract, then BIAB, then I made a mash tun, bought the latest and greatest kettle, immersion chillers, etc. Brewing got to be more of a chore than fun.
Recently I've gone back to BIAB and my last few brews I've just sat my brew kettle outside for a few hours to cool and beers have turned out great. So much simpler, less cleanup, less time, all in all having a lot more fun again.
Oh and I've even gone back to bottling most of my beers even though I own several kegs. Funny how works.