[KMnO4]

How much are people willing to pay? A quick search shows Google's STT API at $1.44/hour. As an example, the Joe Rogan Experience is ~1500 multi-hour episodes, meaning it would cost >$5000 for just that one show.

Presumably the OP is using an offline speech processing tool, but compute costs would still be expensive.

[artificial]

Instead of Folding at home what about STT@Home and offer credits on the service for pooling resources? I've got compute I'd kick at this.

[rapsey]

In that case lots of podcasts could afford to do it. Few have as many hours as JRE and 5k is peanuts compared to the tens of millions he is making.