Hexxit was made around to be on servers, do you realize that? Without decking yourself out completely and even then, dungeons and such are still difficult without other people. Then all the loot is overwhelming for just one person. That's why the loot is so big. For multiple people... Travelling is fun and all, but I prefer travelling out, finding stuff, and then, you know, not having to go all the way back with the risk of losing my stuff. On my server when my friends are all separated in groups, I need an easy way to get around and teleporting is useful...
Hexxit wasn't based around 100 people. It was based around 20 at MAX. It's mainly for small groups of players. I have about 7ish-10ish max players on my server and there's only one person who annoys us. He just goes out and explores when we're not on and basically explores most stuff we find. It's annoying to find him on my server in the early mornings and late nights. :(