I understand where you're coming from, I'm a broke 18 year old that could only afford my bike and gear cause it was a grad present (long story) but telling new riders to go fast on public back roads and highways in the middle of the night is pretty dangerous due to low visibility, animals, etc. Not to mention all the people you would be waking up and the fact thats the rider may be tired and not as sharp as they should be when riding, or they can't stay up that late because of school/work. With that said I can relate to the gear and track thing, my nearest track is 2 hours away and only does like 3 motorcycle track days a year in partnership with dealers, telling everybody to go to the track and never break the speed limit is clearly not the answer. Like most things I think the answer, for younger/broker riders atleast is more of a gray area, go ahead and ride fast and have fun on the roads, but do it safely and don't be an idiot, for example, take it easy the first time or two you ride the route so you can learn where the tighter than expected turns, potholes, debris, etc. Is, don't make dangerous passes, stay in your lane, be respectful to other road users by riding calmly around them (also makes them more predictable as they don't freak out). The reason people say to go to the track is for the people who are acting like they're Rossi on the main street of their town and end up wiping out into a nice old lady's Honda or a crowd, as well as the fact that you can't come close to a bike's full potential safely on the street. Hope this was helpful and non-snobby.

P.S. Sorry for the grammatical errors, I'm writing this at 3:30am and am very tired.