I think this a consequence of the open-source marketing strategy of big tech companies and commercialization the parent talked about. When developers use open-source, most of the time maintainers are paid and it’s part of their job, and of the parent company’s strategy.

In this landscape it’s unfortunate but I think one way to avoid this especially if published on GitHub is to be upfront in the README that this is a hobby project with no support, only to be used professionally at your own risks (buried in the license is not enough). Otherwise if projects are presented too similarly to professional ones it’s fair to expect developers to be confused, it’s just unfortunate to what GitHub has turned and that the burden is on hobbyist maintainers to differentiate now but that’s where we are.

And also unfortunate is the practice of resume building by publishing professional looking projects on GitHub that adds to the confusion.