If you didn't want a reply you shouldn't have posted. That's how forums work, someone browses the forum, comes across an open thread and feels they have something to add to and so they do. As homesell noted, whether the person that started the thread still visits the forum or not is irrelevant, as is your belief they no longer visit and your opinion that it was "revived by a poster who posted a irrelevant homework question." We have enough moderators already, NK.