[davecb]

Did the tag line "How capacity planners credibly estimate application performance (acm.org)" show up?

The ACM series is called "you don't know jack", but the tag line is supposed to distinguish it from all the other "jack" articles.

And yes, the series title is not want you want for something like HN.

[chefandy]

No— it was "you don't know jack about application performance," which is a nice fun title for the series. The current headline is much more useful totally out of context on HN.