What if you have a live chat, only for writing prompts. Then people who want to write, look on there for a while and make a post with the prompt as a title and the story as the description (making sure to @ the person who's prompt it was).

This would reduce the number of empty prompts, reduce the number of people writing on prompts that have already been done to get upvotes and make new prompts more relevant.

Make a youtube video that starts off with someone the reciever recognises but doesn't watch too much. Then stick a rickroll onto it after about 5 seconds. Give it a suitable title and then send it via WhatsApp. They should then recieve it and probably open it in the picture-in-picture thing, which means that they dont get to see how few views it has.