I haven't done anything to my roridula gorgonias seed and I have had three germinate so far and two have died. Here is what I do:
I germinate each seed in a separate pot so that if one dies the others might not. Let the plant grow in high humidity after it germinates for about 4-5 days (I took one out as soon as I saw it had germinated and it
died).
I don't think that smoking the seeds is necessary. I have had nearly 100% germination rate without doing anything except putting them in a plastic bag under lights.
I grow mine under fluorescent lights next to an open window so it gets plenty of ventilation. I also have a fan blowing on my plant every night.
This is what I have gathered from my little experience growing roridula gorgonias, so take it for what its worth!
Here's a picture of my plant so far:
Bad picture, but you can see that its alive!
Another reason why one of my plants died is because I let it dry out too much. You have to be careful... not too much and not too little water. I keep mine damp pretty much constantly, but not as damp as other sundews.
It still has the seed on it, but its growing fine so I'm not going to try and take it off.
Good luck!