Only show your best? If this were true, some of us wouldn't leave the house some days. What if you just want to show some friends on Facebook a picture of the naked cowboy eating ice cream in Time Square? How much time should you spend to take that "nice" photo so you can share it on Facebook? And let's say you did try to take a nice picture but you didn't quite get the photo you wanted, but you still just want to share it? Should you not share it because it wasn't your best image?
One of the greatest joys of taking a picture is not taking the picture, but sharing it. A photo tip like this one will not make you a better or happier photographer. Take great photos, take bad photos, take happy photos; take whatever photo you want but most importantly share your photos!