As a tank, I have an easy enough time finding groups, so I handle people demanding the spacebar thus:
If someone demands the spacebar before we've even started the first conversation, I will go out of my way to ensure I watch and enjoy EVERY line of dialogue.
If someone makes a big deal about the dialogue not being skipped and I was spacebarring, I will stop and watch the rest of the cutscenes.
If I am not spacebarring and someone asks nicely if we could please skip it, I will usually agree to, unless by some rare miracle we're doing a FP I hadn't seen before (such as during my occasional Republic ventures)
I like you.