Well, we offer free hosting and its only 1 GB.... So I wouldn't recommend you give over 5 GB cause they might be spammers or want to host illegal stuff.
Spammers will only need a few megs of space and 100mb+ bandwidth to fire off 100,000 + emails on average...
True say... But for free hosting you should still give more than 500 MB or no one is gonna sign up :crash: