This is all I'm going to discuss before obvious derails. Software.
I don't like vBulletin and don't suggest it. It is easy, but yeah, this was something Rush chose because he was familiar with it and also understood how to work with the styles.
But I have this much to say. There is no one perfect message board software. People have preferences, that goes from the admin side to the user. Everyone has their bias and familiarity, so use what works for you. I've been running and maintaining board software with all sizes and scope of communities for just a few months shy of 30 years. I've used nearly everything, sent a lot of code upstream to certain projects (some which still have an alias of mine in the software credits). vBulletin I know the least because it's not a project worth learning, this is one of two sites I help that runs it. You can't really contribute code directly to the project and there is a reason why the core group of developers have divided into many other projects. It's a hot mess of shared philosophy. So as far as that is concerned, I have my bias, vBulletin was maybe great as a premium suite 15 years ago, but not in 2017.
First thing is first, you need to know how setup, maintain, and how to harden a server. Otherwise any forum you run will just become a mirror DDoS script for some botnet. If you can't do that, then don't bother with the forum part and just build some dynamic sites.
Take whatever http and extended daemons that you best know, then decide what kind of application layers you want to build on it. And yeah, if you want to play, XAMPP is fine. But if you want to be serious, don't expect to master XAMPP and know the real world. That is one of the biggest mistakes newbs make.
SMF is IMO the easiest one with full features for newbies. It uses a hybrid-BSD license, which is not a true free and open source license, but you can use most aspects of it freely and at no cost for the software itself. That's not to say most forum software is particularly hard to use.
Every site has users that want the owners to use different software. There are fanboys of IPB, Xen, Burning board, smf, myBB, phpBB, vBulletin, etc... They all work similarly, so learn one if you want to host a forum and build from there. Learn how to harden your server.