In general in Labs we don't have a large need for
a queuing system
Of course, because nobody is using it right now. I suppose Toolserver
didn't need it when it had only a few users consuming its resources.
Does this mean your efforts were wasted? Of course
not. Your efforts
helped keep the project running, which is important. Just because your
file was replaced with the production copy doesn't mean the work put
into it was for nothing.
Amazing! We should suggest this approach to the editor engagement team,
the post-edit feedback could say "Your valuable edit is now visible to
the world. It will probably be reverted in a few minutes, but you can
still be proud of it, knowing that the new revision written by someone
else is much better!".