The real culprits are the spammers.

真正的罪魁祸首是群发垃圾邮件的人。

Spammers also need lots of addresses to evade the filters.

垃圾邮件制作者们同样需要很多地址来躲避过滤器。

That is why the spammers’ new arena—social networks—is so effective.

这就是为什么垃圾邮件发送者的活动范围（社会网路）是如此有效。

Spammers also have become more sophisticated about exploiting trust.

同时，垃圾邮件制作者在利用信任这方面已经变得更有经验。

Did you tell them that you won't sell their email address to spammers?

你是否告诉他们网站不会将其电子邮件地址出售给垃圾广告商？