It would be really nice if there was an option to have a link people could use to upload files to your A360 account without an autodesk account, similar to how sharefile works. For example, we have a sub that has a link in his email to "Click here to send me a file Directly" which is a link to his share file account which allows you to upload a file to his account just by entering your name & other info, just so he knows who it's from. I'm guessing your random uploads could just go into a public uploads folder where you can sort & deal with them from there.
This is probably my biggest beef with A360, it's not so simple to get people to sign up for an autodesk account when they may be doing YOU a favor by sending you just one or two files.