I didn't understand the hostility either when I first came to T Nation. I didn't understand why the regular posters and Jim were always so short with people, I almost dumped 5/3/1 because I thought everyone was up their own ass. It wasn't for a few months later, after joining Jim's personal forum to get more information, that I finally understood the program and why everyone was so being short:
Because every. single. day. people ask the same exact question you are asking: "will my version of the program work?". And every time, we give the same answer, "do the program as written". This happens over, and over again because everyone thinks they are some kind of snowflake. But you aren't. You're not, I'm not, your clients aren't, no body is.
So when you don't understand why every body is being "hostile", just double check yourself, because you are the same as everyone else that has come through here, and people have answered this question about one million times. You are the same as I was just a few months, ago - hell, just look at my previous posts. The sooner you understand why the program is the way it is, the better off you will be.
Trust us, stop writing your own versions of 5/3/1, pick one of the MANY programs that have been proven to work, and, most importantly, don't fuck with the program.