They will be deleted and after someone is reported "so-many" times (not sure how many) their ISP location will be banned from topix.
For a Topic:
Right click directly on the post. Select properties. Highlight the Address (URL) then click copy then OK. Paste that link in an email to firstname.lastname@example.org.
For a comment:
In the upper section of every post, there is a gray number, this is the post number (permalink). Right click, highlight the Address (URL) then click copy then OK. Paste that link in the same email.
Just tell them it is against their TOS.