I fully agree. It make sense to continue investing, adding new content, sharing the site with other. There is now a new abbreviation, 'AEO' - Answer Engine Optimization. How to optimize your site in a way that AI can find it and use it in an answer, or at least, this is how I understood it. Investment in low traffic site is needed, just the type of work that needs to be done, I guess, is different, so that the AI can find it.
Notably if you believe this it does not matter so much what your site looks like and does matter if it is easy to crawl and easy for AI to interpret.