I had this e-mail, but not the other one.
It is irritating, but let us not lose a sense of proportion here. It is ONE email. Before anti spam, I was receiving over one THOUSAND emails a day. I'm honestly not exaggerating. If you select the email, and then click the 'SPAM' option you will never receive email from him again - hotmail/yahoo/whatever will block it.
The only way that your email address cannot be accessed, or mined, by someone else is to never enter your email address in the first place. Never access the internet.
Every time someone produces software to prevent mining for email addresses, someone else produces software to overcome that. It is an ongoing battle. There are some very talented hackers who can find out every little detail about your life in a few minutes - no matter what protection you have.
Even NASA and the FBI get hacked.
I think that a few people on this site are being a touch pathetic. This is not the fault of BCUK or the administrators - so cut them some slack.