1. Yes, there are various opinions on this topic. See http://www.aishdas.org/rygb/eruvp3a.htm http://www.aishdas.org/rygb/eruvp3a.htm https://www.jewishpress.

1. Yes, there are various opinions on this topic. See http://www.aishdas.org/rygb/eruvp3a.htm http://www.aishdas.org/rygb/eruvp3a.htm https://www.jewishpress.com/judaism/halacha-hashkafa/carrying-eruvin-and-manhattan/2013/05/22/ https://www.jewishpress.com/judaism/halacha-hashkafa/carryin... and https://www.koltorah.org/halachah/the-laws-of-creating-an-eruv-part-iii-by-rabbi-howard-jachter https://www.koltorah.org/halachah/the-laws-of-creating-an-er... for example. (It's reshus or reshut btw, not dirshus ) 2. This is a good background for its institution. http://www.hakirah.org/Vol%203%20Buchman.pdf http://www.hakirah.org/Vol%203%20Buchman.pdf 3. It's overseen by an Orthodox group. (It's used by Orthodox Jews, so not sure why you would expect otherwise). https://www.jewishcenter.org/manhattan-eruv.html https://www.jewishcenter.org/manhattan-eruv.html http://eruv.nyc/#organizations http://eruv.nyc/#organizations https://mechonlhoyroa.com/ https://mechonlhoyroa.com/ http://www.rabbimintz.com/ http://www.rabbimintz.com/