I hope you wouldn't take that site and develop preconceived notions about what your own experience will hold. For what it's worth, Navy nuke life will push you to the limit... a lot; and it's usually not your actual job that drives you nuts. It's very easy to get caught up in the negativity, which will at some point come at you from every direction -- your buddies, your boss, your job, the command. If you don't develop some good coping skills you can very well have a terrible Navy experience. While it's impossible to maintain a positive attitude about this job 100% of the time (everybody has a breaking point, and the combined stresses of Navy/military life and nuclear power will test that point at least once in your Navy time), you should try to be the guy freaking out the least in bad situations.
When it feels like today/this week/this month/this year will never end, it's important to realize that working 16 hours a day, six days a week isn't the culmination of your efforts; it's part of the development process. If the Navy isn't your thing you can leave at the end of your contract and live a good life regardless of how bad your enlistment was (instead of obsessing over how terrible the experience was).
I can tell you that my Navy adventure hasn't been all peaches and cream and that I'm planning to get out when my contract is done, but I don't go into work every day hating my job and my life. In fact I'd be a lifer if it weren't for a few little (HUGE) issues I have with the "way things work."
After all that rambling I should just say that you shouldn't lose heart just because somebody really hated their time on the boat. You don't have to hate yours (and you certainly shouldn't worry about it before the whole thing starts).
I'd also advise against judging the creator of that site. Some people have a terrible time in the Navy and there's nothing besides EAOS that can correct it. I have a few great friends who absolutely loathed every second they spent in the Navy; and though they are now successful post-Navy, they are absolutely unable to see anything positive they gained from their time (except an incredibly high tolerance for BS and unreasonably high standards for their professors/co-workers/etc.).
