Third case when my approval for comment is requested:
"Hey, MrPetari! I really love this video! Sorry for being in your spam folder, but can you please follow me on instagram? You can click this link to check it out: instagram.com/moodups You would do me a huge favor! Best regards, Patricia."
And yes, it's clear case of spamming, advertising some products.
Now I'm happy, that have not that much viewers, commenters of my videos there. Imagine how much time would I spend reviewing all that approvals
Negative feedback has usually positive effect.