Why no WT on YouTube?

I recently had a discussion with a PIMI about why the WT wouldn’t put their videos and broadcasting on YouTube. Isn’t that a more logical way of spreading the ‘truth’ than going door to door? You can even disable YouTube comments to avoid criticism, but the message would available. I mean, imagine tutorials or bible discussions for everyone to learn from. If this really is the truth, why keep it to yourself on your own platform that the outside has no idea of. I assume the organization doesn’t want to be affiliated with these companies nor the advertisements on their videos.

Btw, I’m a non-believer