Why? Any writing cycle consumes it. And trust me, the Downloads folder in RAM is one of the best thing you can do to reduce the bloating of files in a system:

Why? Any writing cycle consumes it. And trust me, the Downloads folder in RAM is one of the best thing you can do to reduce the bloating of files in a system: you learn to copy away the things you really need, and leave the others there; at the next reboot they'll be vanished.