I used to enjoy the reactions I'd get from store clerks and telephone reps when I give them my email address. "Oh, how you have an email address with our company name in it?" In recent years the reactions have turned kinda hostile, "What is your connection with our company?" and once "You can't have our company name in your email address." I gave up fighting and now I just use random strings.
As long as you use a secure password, and you don't use the same one. I don't see alot of difference, but the ability to sandbox each service to a list of email accounts, so that the attacker never knows the master account, would be an extra layer of security.
Utility exists here. I just don't think there's enough utility to justify the work.
End result is that everyone gets a unique email that can't be guessed, I can nuke an address as soon as it starts sending me spam (often) and my true inbox is typically completely clean.
I initially made the mistake of trusting my bank and utility billing systems with my real address. Turns out my power company had their database compromised, and when I called to inform them they refused to believe me (like Dropbox).
If I'm at Toys R Us or something, I'll just be like uh... "tru25@<mydomain>.com" so they don't question me. (Also, I chose Toys R Us as an example because when I went to sign up for a loyalty program, and they typed in "toysrus@<mydomain>.com" their cash register black screened and rebooted... !)
dropbox email -> qebcobk@yourdomain.com
Is it some kind of internship scam?
Is the point of volunteering to put it on your résumé for future employment opportunities in customer service?
This is the company's OFFICIAL forum, and therefore the conduct of the appointed "moderators" reflects that of the company.
At least the former inspires hope that it could potentially lead somewhere.