Did the OP pitch you for VC? Why do they need a moat?

I read the GP's post as sarcastic. But Poe's Law makes sarcasm hard.

Why should one pay for an app containing features one could get for free somewhere else? A google search for "free video editing software" gets 650M hits...

Just to be clear, this isn't a criticism of the software on technical grounds. I don't doubt that the OP knows what he's doing. It's the commercial aspect of it that I don't understand.

What’s the moat of the millions of others? 99.9% of business don’t and can’t have a moat.

Yep. You only need a moat if you have a fort.

The moat is, it was built by a single dev with capital efficiency. This is what millions of other video editing apps backed by VCs lack.

On top of that the app has organic views as it ended up on top of hacker news that lot of these apps haven't.