Ah, I didn’t have a default timeout on info messages because I also use those for release notifications & I don’t want those to automatically disappear. I’ve changed this node limit notification to an error, which automatically disappears in 5 seconds.
Each time you click the Node Hunter button, it’s a new interaction. It re-checks whether you’re zoomed out beyond level 14 (about 1k feet in the bottom left gauge), and displays the alert if you are.
I suppose the core issue is that I have to balance two things:
- People who aren’t aware of the limitation, who see Node Hunter as behaving oddly and sometimes not showing all the unfinished nodes & submitting support tickets asking for help
- People who do know how things work, and are comfortable with not being told about it
I’ll look into adding an “OK OK I get it!” button to the alert, which will hide future notifications.
Update: The next version will include a “Don’t alert me again” button which will set a cookie which tells Node Hunter whether or not you want to be nagged to death 
(Closing this topic, which frees up people’s votes - I think there’s a limit)