I think I did get notified, but a recent update has made it so that if you reply to the post directly above, it doesn’t show in the post’s info bar. 
You can also use @ followed by a username to tag people if you want.
If you wanted a more specific effect, you could do something like that again, and include a more specific intention.
A similar working has been called “The Ritual Release of Hatred” by the mage E.A. Koetting, one of the owners of this forum, in his book Baneful Magick. There’s a discussion about it here: