So here are things I've noticed about crop circles.
5. They're a poor way to communicate.
If aliens really are making these geometric shapes in fields of barley and wheat as a means to communicate with humans (as what many people who still believe that crop circles are made by aliens claim) then it really has to be the worst way to communicate with another intelligent species.
Beside the fact that whomever makes these things would require the people that they are intended for to be able to fly somehow (which is of course easy for us now) it would also require those people to have an understanding of what those shapes mean. That is of course if those shapes have any meaning to them at all...
To simply put, it would be far easier and less confusing for aliens to land in a public area and start talking to people than it would to putting shapes in a field of crops.
4. It's vandalism.
Regardless of whether or not it's bored human who want to create a giant piece of art, or aliens from a distant planet trying to communicate with up in the worst possible way, it's still vandalism, and it's not only damaging a part of a person's property, it's also destroying a part of a person's livelihood, and it's destroying food.
I would think that any beings that were advanced enough to build space ships that could cross hundreds, if not thousands of light years, would at the very least know it's not nice to destroy another species food even if it was to send a message (that no one can figure out).
I would say that I would like to know what kind of species makes these crop circles, but I already know which species makes these crop circles, because...
3. We make them.
Yes, despite what many people believe, crop circles are in fact made by humans. It doesn't matter how large or complex they are, human beings (sometimes many human beings at once) are the ones who are making these things.
Not only is it known that humans make them, it's been known for over 20 years that humans make them (and it was greatly suspected even when crop circles first started appearing in the 70's that they were made by humans). There's even videos on Youtube showing how to make crop circles:
2. There are people who still believe they are made by aliens.
Despite the fact that it's been known for over two decades now that humans are the ones making crop circles (with plenty of videos and arrest records to prove it) there are still people out there who refuse to believe that groups of people can get together, go out to some farmer's crop field in the middle of the night, and make some geometric shapes in a pattern...
Besides believing that these crop circles are made by aliens, they are very adamant about their belief that crop circles being messages from aliens, often times to the point of which they become hostel towards those whom tell them that crop circles are made by humans.
1. They're very artistic.
I admit it, I think crop circles are very artistic looking and pleasing to the eyes, and the size and scale of these creations, not to mention the complexity of some of these creations, just makes these things look awesome (despite the fact that they're still acts of vandalism). Some people even say that they're a form of modern art.
This is in fact all that crop circles, art. They are not made by aliens. They are made by humans. Even the seemingly very complex ones can be easily made by humans after enough practice.
There is no hidden messages behind these things. They're just there to be look at and be admired.