UPDATE: He/she still continues in what he/she's doing. Replying the same posts (advertisement) in different topics and doesn't have any connection with the topic of the Original Poster.
report them to mods as ads spam, maybe mods will nuke him for spamming
in case you don't know how, at the bottom right of his post click
"Report to moderator" link
edit: well it looks like they have been taken care by mods when I was composing this post
even his [ANN] thread has been removed too