@shibaprasad Quote-toot also doesn't mention the person who got quoted. It's not good as a general reply function (You'd have to add a @ mention to me there to notify me, I just happened to look at the local timeline and spotted this).
It's to put other toots in the spotlight that you also wanted to add a comment about, just like you've done with your previous toots.
It also breaks threaded replies because of this, so you know. :)