I can agree with what everyone is saying.
However for me, I do change my course management depending on what I am playing. If I am playing by myself and just practicing, or playing a casual round with a buddy, I will sometimes play shots that I know are too risky just for the opportunity to see what happens. Hitting risky shots is exciting, and more fun that fairway, green, fairway, green, etc. It gives me a good idea of just where my limits are and gives me a chance to hit some of those crazy "save the hole" shots. I usually get excited when I get a chance to hit some crazy low punch hook, a 190 yard high slice back to the green, or a super high flop shot over trees and onto a fast green. It's fun to be inventive and try things.
However, if I have money on the line, am in a serious round, or a tournament I won't even think of taking those chances. I play to my strengths, don't hit nearly as many drivers, don't go for nearly as many pins, etc.
For me at least, it can be fun to let loose and try to push my boundaries. It does help me out when I am in a serious round and really get stuck somewhere because I have the experience with those shots.
It's all about balance reallly. There are certain risks that are just silly.
For example, #2 on my home course is a short par 4 (354 yds). It is tightly lined with trees on both sides. I always hit a 3 iron off of the tee so I can then hit a full PW into the green. It's not negotiable. Even when testing my limits, it doesn't make sense. So I hit a driver and have 50-60 yards left... great now I'm in the stupid range of half swings with wedges.
Another example. #10 on my home course is a short par 4 (343 yds) with a dogleg right and a creek running through the dogleg. Due to elevations it plays shorter than that. The creek is 100yds from the green. There are huge trees at the dogleg. I "can" hit a driver over those trees and to the fairway on the other side. However it is super tight (the fairway narrows and is sloped to the rough there giving you an uneven lie even in the fairway). Do I go over the creek? Never. I hit a 4 iron and stay short of the creek every time, hit a PW or SW into the green. Have I taken a driver over the creek? Yes, in practice a handful of times. After I saw what happened, experienced it, I quit doing it. I haven't done it in probably 3-4 years, but when I get grouped up with people I see people trying to clear that creek all the time... just to put it in the water or put themselves in an even worse position.
As an example of a risk that I think is fine to take in casual play, I will usually go after every single pin when I am really just practicing. Cut it into this hole, draw it into that one... etc. If I miss the green and short side myself, it gives me an opportunity to try the saving shot and see how it goes. It can help me gauge what pins I can and can't go for in serious or tournament play.
Just my thoughts...