meta.SE automatically suggests tags (pretty accurately, kudos!) (at least it just worked half an hour ago when I submitted a bug report. Curiously for this feature request here it didn't work for me.)
Why is this feature not available on other sites, e.g. aviation.SE?
It's incredibly helpful and a huge time-saver.
I have seen many inadequately tagged questions (at least on aviation.SE), because users are not willing to spend much time looking for the right tags. This feature would enhance cataloging of questions greatly.
I submit this hereby as a request for enhancement.