similar question: Eliminate the Career tag

I have been searching serverfault, security.stackexchange, programmers.stackexchange, workplace.stackexchange for the past week for career questions, but none of these site accept career questions in the faq.

I have asked several questions already, which have been closed.

• https://security.stackexchange.com/questions/31215/what-are-the-more-physical-job-classes
• https://security.meta.stackexchange.com/questions/1165/which-site-to-locate-career-question
• http://workplace.stackexchange.com/questions/9819/physically-demanding-job-classes-in-information-technology

I finally found a useful answer at What are some IT jobs where you don't sit at a desk for 8-10hrs a day? but that was also closed.

So if career questions aren't acceptable on any of these stackexchange sites

1. why does the career even exist?
2. why not a site where career questions can be asked?
3. if you sum all the career questions across sites, how many are there?