Quoting people

so, in the my threads function, how hard would it be to put like some sort of symbol, like the yellow asterisk that says you have a profile, an asterisk could work, just a diff color, but to let you know when someone has quoted you in a thread you've posted in, so that in a thread that is fast paced, or if you log off for a week at a time you can go back and find what someone said in reference to your post and offer a reply.