I am still not sure if fogbugz lost. In general simple systems are always hard to built. In general while doing a project with fixed date approach Jira issue t

I am still not sure if fogbugz lost. In general simple systems are always hard to built. In general while doing a project with fixed date approach Jira issue tracker is indeed not inline with the source code. So there is a discrepancy between what is in issue tracker and whats in the source tree. Moreover developers cutting corners to meet the fixed date is a technical debt for future and Jira promotes it. Fogbugz with its probabilistic approach is better matched with the actual source code, since even though developers over or under estimate, its probabilistic distribution analysis puts standard deviation and means put in front of their eyes to do better. So in general fogbugz approach results in better source tree and less technical debt.