Slav.. I would say that maybe they don't matter to you, but they do matter in general. In logs with multiple QSOs per minute without seconds you loose the ability to chronologically order them deterministically. Regardless, this is a moot point; it's trivial to remove the seconds from the data set with an external tool like excel or even a text editor with regex find and replace if it is necessary for whatever your use case is. If you feel like it is really necessary to EXPORT Qs without seconds, feel free to open a feature request in github. I can tell you that the seconds will never be removed from the application's internal log.
