Re: Increase Your Dropbox Storage (up to 18 GB) - Special Offer!!!
My service is to bring VALID referrals (not spoofed, every referral is a valid dropbox user), I won't get into details, but your dropbox account will be ok using my service. My previous customers can vouch for this 
I'm sure you won't.
When looking for Data Entry work on the freelance sites, we'd regularly encounter fake accounts there posting jobs. They'd put 30-40 potential applicants per ad through an online typing test, then tell them to register for a Dropbox account through their referral link "to receive work files". None of the applicants looking for work were ever hired. The posting would be closed, and a new posting with the same requirements would show up from a different dummy employer account.
There's no way to know for sure that dropboxexpander is defrauding these job-seeking applicants, but it seems likely and we know it's how a lot of paid "Dropbox expander" services work. By defrauding and wasting the time of hundreds of people who are unemployed and actively looking for work.
Good times.