Hm, well spam filters may vary between service providers, but two things I've noticed --
1) When I receive my emailed copies of comments from the Addventure, whenever the comment has an obscene word in it the email tends to have a [SPAM?] prefix in front of it.
2) Whenever I try to send an email containing a link to any BEA page in it, the email is immediately rejected as spam. Which suggests that the site is indeed on some spam block-list.