As to the thread, nice find. I'll go through it more and your questions later, but heres something that helped my game. Maybe not necessary for beginners, but as they start to move up it could be worth it.

At some point you need to learn to play against regs. Now most people think of regs as decent players, but you spend a bit of time looking around a site like 2+2 and you should quickly conclude that most regs are just the same droolers who have read some strategy. In short their game could largely be scripted into a bot, because they believe they should always do X in situation Y and they're basically incapable of adjusting. So how do we figure the best way of playing v's them? Well, we know their playbook. Wanna know how a reg will play in a spot? Think about what the standard play would be, thats what they'll do. Almost 100% of the time. So think through the spots where robotic regs will almost always do the same thing then consider how to exploit that. At the same time, you'll be coming up with ways to make your own game less exploitable. Lukie picks the most obvious one right off the bat. Most regs have a c-bet % of 80% or higher. People flop a pair or better like 30% of the time, so 50% of the time they're c-betting air (in fact of the times they c-bet its higher, around 60%?). Think about other conventional wisdom and how to exploit it.