> I threw some ads up and showed to a few thousand people and so far no interest at all.

Perhaps people will be more interested if you write the message in the blockchain and also post it in eXTwitter and a link to a webpage where they can "see" that it's posted in the blockchain.

It's silly to add a feature that are to ephemeral post to a permanent one, but people understand eXTwitter better than the blockchain. They don't want to store "I love you" forever. They only want to post in eXTwetter that they have done that.