I agree with your reasoning on why the feature, if implemented, should be a button.

I've been thinking about this more and I wonder how much of our desire can be solved by existing tools. I've been trying different options on my home page (the icon next to your avatar, not the page you get to by clicking on the snapzu logo on the left) and I've found that having to click a button to load new content, even between page views, means I can pretty easily keep up with new snaps. For snaps I want to keep track of discussion on, I can pin those and switch between Tribes Feed and Pinned Feed. Looks like we can't pin text posts yet, but I saw drunkenninja say that they're working on that already. I'm gonna try this out today and see how it works for me.