Basic nutshell: MatchDoctor.com is run by men. Men love to abuse women on this site. If a woman stands up to any men that abuse her, she's banned. And further more, any abusive male she complains about is still allowed to roam the site and abuse other women. They aren't banned for their abusive behavior.
Ladies, if you want to meet men, stay as far away as you can from MatchDoctor.com. They may be free, but they're not even worth that when you're being abused in email.
If you want to meet a guy for free, just find a chat room for one of your personal interests. It's better than these lousy dating sites.