I think anyone that types that stupid redditt phrase for aliens should be beat to death with a bat.
the arecibo message was broadcast exactly ---->ONCE<----, in no particular direction ( a star cluster of old stars)
It was a symbolic act. what's left of the message is currently beaming through empty space in the form of an extremely short, faint radio signal. it will not reach the star cluster for another 25,000 years or so.
the idea that this crop circle is a specific response to that is like if you were to take a boat out into the middle of the pacific ocean with a special, highly-publicized coded symbolic message in a bottle, tied it to a brick and dropped it down the marianas trench, then came home to find someone had spray-painted a reply on your garage door. would you first suspect atlanteans, or your next-door neighbor who you've seen writing similar messages on garage doors with spray paint before