Your paragraph about reputation is wrong: the thesis statement of this paragraph is: half of science is your methodology. And that's not really gatekeepy, it's what's needed to be recorded to actually verify what was observed. So we don't have another Piltdown man or microraptor.
Have you looked into citizen science projects? There are many many projects set up so the average joe can contribute in some way. They may not be discovering a new species like some Edwardian British Naturalist, but they are helping contribute in significant ways.