Not sure if things have changed recently, but in the past you could create a mega account and get 50GB free for the first month, and as long as you don't go around moving or deleting anything from it after that month is over you'd still keep that data. Basically you could create a new account (#1), upload your files to that.. Then create yet another dummy account (lets call this one #2, this one you'd use to share links in the forums) and do a quick cloud copy of the first account (#1) and pass them on to (#2) the that way if the links get removed, or the account banned you aren't actually risking your main account.
I could create a quick one and give you the account details. I mean, that is if you guys want.
Of course, that still leaves the other problem which is white knights and crawler bots. I've seen some pages use base64 to prevent the latter. You basically grab your link, paste it into base64, then encrypt it and then share that link. Then folks that can actually read and aren't completely illiterate could take that encoded text and paste it back to b64 to decrypt it.