I do vent outside. Just don't use an extraction fan. If you put enough air into the tent then venting is a given. I push air in and it pushes air out into my duct and outside. I wasn't trying to call any names only that everyone that regurgitates these 30 year old grow Bible excerpts have less knowledge of what is actually required than someone who has done it both ways. I spent the money on fans and all the other crap people said I had to have. For my second, third and fourth tents I did it my way. In no way is there any difference in my plants, temps, harvest, or quality. My leaves don't claw or canoe and growth is wide open. I only suggest that If needed a fan blowing on your plants isn't going to hurt them as much as high temps. And in my experience has never hurt them at all. Your pushing maybe a 1/4 of the air I am through my cabs. I've never had any problems. But it's whatever. If your plants have problems with wind then do it your way.