people have to know that a particular project exists, too. i don’t think they’re going to just stumble upon it by accident.
regarding manual URL construction, i actually think that’s good skill for folks to develop, but even for those who can’t or won’t learn how to do it, someone else can help them construct an appropriate URL, and then they can just bookmark it for future use.
i do agree that the ideal solution would exist inside the system itself, and i do wish that iNat’s standard identification page had the same sort of functionality as exists in my page (so that my page would not be necessary). and i’ve argued in the past for a screen in the mobile app that would help folks find disagreements easily. but in the absence of those improvements, i think my identifications page is the next best thing. there are actually many things you can do with the page besides finding mavericks. so i think it’s a useful tool for power users to be aware of anyway.