To be fair, in my case it wasn't in the US. > It had integrated wait lists, so you could just sign up and hope someone else drops if needed This just moves th

To be fair, in my case it wasn't in the US. > It had integrated wait lists, so you could just sign up and hope someone else drops if needed This just moves the scripting point to "signing up for the waiting list". I guess in that case it does mean that running it 24/7 wouldn't help. > and occasionally you could just have the professor add another slot (the college didn't mind the free extra money). You paid per course? In most of the world, you pay per semester and there are no per-course fees. So professors aren't particularly incentivized to take more students. In our case, the number of professors and size of rooms was simply insufficient for the number of students. Especially if you wanted a good professor - where I was at the variability in quality of teaching was pretty high. Or for some people, if they wanted to schedule things so that all their courses were packed into 4 days of the week, or they didn't want to wake up early, or whatever reason for making a particular course be in high demand. This led to the necessity of such scripts.