If another user clicks on e.g. my profile, he would see the latest channel posts I marked as "sticking" - or something like that - in a swipable feed - either underneath OR on top of the bio. After some time the channel-posts disappear from my profile.
This could be a way to share news/announcements/interesting articles to people interestet, without need to forwarding it to every single one of your contacts.
Maybe the profile picture could get a highlight (like a blue ring around it) if someone recently sticked a channel post to his personal profile. Also, you should be able to restrict specific users from seeing your sticked posts.
This new feed would also be a good way to discover new channels, that you would otherwise never come across - and it could boost the attention good channels get.