Which makes me think that they joined solely to post spam links. Quit pretending to be obtuse, or are you not pretending?
So, why did you bother to disrupt someone else's thread about Valentine's Day? Might you have reported the post quietly and let the thread continue?
@OP: Because of this thread, I have a great example of what not to do and a few ideas for non-romantic Valentine gifts for people who feel left out at this time of year.