No one should shame someone for having their first kiss with someone they didn't love, that's perfectly valid as a choice.
What rubs me the wrong way is DNL implying people who did wait until their first kiss was with someone they loved, did so out of sexual shame. No, I didn't thank you very much. I did it because I personally wanted it to be meaningful and special, and it was, and I don't regret a thing.
Choosing to make a first time special and meaningful is just as valid as people who don't give a fuck.