I have asked about salt too. You shouldn't feel bad for asking. By design new users don't have access to search so of course new people here are going to ask questions (like I did) about topics already covered because unless it was very recently, you will not easily find it until you have been here a while and made enough posts (however many that is) to have access to the search feature... so, yes, that reply in the thread was rude as hell.
And, for what it's worth... for all the supposedly "perfect" methods discussed on here, I've found numerous instances where they did not work and/or caused a lot of pain or problems in the not working... and even when they do work, IF they are more painful than expected we probably never know, because they still worked. Hanging isn't easy. You need a rope that will support you and a secure place to hang from that will support your weight and if you don't do everything just right, you might survive with problems OR you might go, but it will take a while if you aren't gone instantly and that would be awful... and the SN method, I've seen a bunch of posts about how hard it is to get SN and how people have not gotten "good" SN or how the protocol didn't work as expected for them, and so forth.
Meanwhile, I read a couple of accounts on salt that seemed like it wasn't that bad. In other words, your mileage may vary.