The users of this extension balked at paying for the upkeep of a 15TB database of (user, like) mappings.

Do you really think they're gonna financially support an entire video hosting platform?

I meant if you don't like YouTube, try to make an alternative. Prototype it and look for venture capital.

I assume you wouldn't put "Our target users are people who started swearing at us when we asked for enough money to pay for a single 15TB database" in your pitch deck.