With the new changes to tag watching with some more changes around notifications coming and new controls to build custom question lists also coming, are there any plans for fixing instances where people have expertise that spans multiple sites?
For example, questions that I can answer based on my education and professional experience span at least 5 sites - Stack Overflow, Software Engineering, Software Quality Assurance & Testing, Project Management, and The Workplace. There are even some other sites that have some overlap - Open Source, Law, DevOps, and a few others. Each of these sites have tags for and questions in those tags that my expertise allows me to answer, some with more than others.
Honestly, keeping track of so many sites is a pain for someone who is an expert on a given topic or set of topics and just wants to find questions to answer and get notified of new questions in their area of expertise. These new tools should help a lot on a single site. But it doesn't address when someone's expertise crosses multiple sites.
The RSS feeds are somewhat OK, but I think there are issues with them. I posted a possible bug since it looks like my RSS feeds are not including all questions posted to all sites in the feed. Having something on the SE platform seems like it would be better than trying to rely on RSS readers to collate the results and not drop anything. It would also keep people on the platform and be able to react and adapt as new sites are added, without needing to manually update RSS feeds.