Interesting idea. Might be a bear to implement, though, and it would have to be implemented by the majority of clients in order to be useful. Otherwise, users might pay to have their note put into @ODELL's feed, is a feature that a few clients support, but he doesn't use those clients, so he never sees it and they wasted their sats. It does kind of remind me of what @Ian and @Mandana are working on with @nextblock, though. Haven't heard any developments on that front in a little while, though.