This is a case of some part of the group having differing goals than each other.

If you use DF you will probably be thrown into a group with some first timers and some speedrun people. I say watch your CS as they happen as it is much more enjoyable that way. Most speedrun groups I have been a part of have been premade by shouting.

This could mostly be solved if they would just give us checkboxes in the DF screen saying [ ]storyline [ ]speedrun and you can check one or both if you don't care wich. If it turns out to be a speedrun party then don't even show us the cutscenes.