Writing an article outside of Academia. Is it likely to get supported?
I agree with Wetenchaap's answer and just want to elaborate the picture from our (university) side. Occasionally people write me and suggest something along the lines you envision, so, in general, yes, it is possible. However, my personal experience with this type of collaboration is mostly negative so far, and thus now I'd think twice before venturing into such projects again.
So, what's the problem? Usually it boils down to expectations and work management. People outside academia often misjudge what is considered &quot;interesting&quot; or &quot;publishable&quot;, and what kind of work is typically required to compose a paper. More often than not getting a full picture cools down their motivation. Next, since people typically have jobs and do research in their spare time, months of efforts can easily end up with a short &quot;sorry, piled up at work&quot; message. Thus, investing into someone else's idea requires trust that lies on some firm foundation.
Dealing with students and colleagues is much easier. Students need it for their graduation works and (possibly) for their future careers if they consider staying in academia. Colleagues do research with me as a part of their normal daily activities. Outside people are unpredictable: today they believe that publishing a joint paper is good for them, but tomorrow they can easily change their mind.