[doublerabbit]

I'm not sure it's afraid but more the resources required to make it successful.

Bandwidth isn't cheap, storage is a bucket load and than moderation & copyright. Let alone any other issues.

[phendrenad2]

Depends on what your goal is. If you're trying to make a competitor to YouTube's original idea, bandwidth and storage are likely distant concerns, and copyright isn't a hard problem (because you can just accept DMCA requests like the rest of the world, you don't need to replicate contentID).

If you want Despacito and the Baby Shark Dance to be your top videos, it gets a lot harder.