I think it's a bad idea to delete negative comments.
I know it hurts if somebody says: "You're an idiot!" or "You're video sucks." or any other type of negativity.
But it is a good sign when people see that you're engaging with the hater and saying: "What do you mean by that?" "Can you tell me how I can improve?"
When that happens, your community becomes stronger.
People aren't looking for antiseptic channels that are beyond criticism.
When you get hit by negative comments, this can be a golden opportunity for your brand to stand out.
You were basically given a chance to interact with people who may not see eye-to-eye with you.
By engaging with them, getting important information from them, and possibly scaling up and modifying your content policies in such a way that satisfied them, you can push your brand forward.
You have to understand that just simply deleting negative comments won't make people change their minds about you.
I would rather tackle this issue and learn from it and become better because of it.
One of my favorite philosophers Friedrich Nietzsche once said: "What doesn't kill me only makes me stronger."
Learn from criticisms.
It's not something to run away from.
Instead, it's an opportunity to learn, absorb, rebuild, and come back much stronger and better than before.
If you don't believe me, look at some of the hottest channels out there.
Look at the channels that make money hand over fist.
Do you think they were perfect from Day One?
Of course not!
They had to go through the crucible, and there were a lot of haters along the way.
The key is to rally your organic community and let them know you are a human channel, ready to evolve, and ready to learn.
That's how you get ahead.