I was going to ask a question about how status-completed should be handled in conjunction with accepting answers, as I couldn't find anything, but as I wrote the question, I finally got useful data in the Similar Questions panel to the right of /questions/ask.
So I decided to change my question to "why can't I do useful searches for these meta-meta-things?"
Why is it so hard to search for things related to status-completed (and other meta tags), ignoring the actual tag status-completed?
The regular search tool is useless for this purpose; searches like
status-completed -[status-completed]return no results, and searches like
status-completed(wrangle with it to get it to not turn it into a search for
[status-completed], such as by adding another keyword) just return a whole lot of status-completed questions.
The "Questions that may already have your answer" list that appears in the Ask Question page once you fill out the title are useless. (I suppose it uses the same sort of data source/technique as the regular search tool.)
- The Similar Questions panel to the right of the Ask Question page, which appears once you start writing a question, does provide useful results. I guess it doesn't include the tags in what it searches. (It was there that I found things like Should I flag for moderators to add status tags? and Marking questions as [status-completed], which are what I had been looking for. And they demonstrate that tags like meta and meta-tags can't be depended upon for search.)
So then: could the search tools be improved in some manner so that this style of search becomes possible? Perhaps by making
status-completed -[status-completed] work, or by introducing some way of excluding tags from the search fields?
(It should of course be understood that mitigating this problem is the fact that it's really only the meta tags that will need to be searched in this way.)