I’m happy to chat to any relay operators who would like a service for this.
Aggregators will have the best data to build and train datasets - and detect spam sooner than relays. It’s certainly a space where one can add value.
Discussion
To add value for relays, why not extend NIPs to store pictures/videos directly on the relays and client pay for storage, pay for write only.
Currently it is so hard to get content of the link from TW/YT if client is being in censorship ocean. With above function, a single sync from relay to relay makes things easy.
Definitely I see a revenue model here, especially for video hosting.