> I don't want videos of me online.

This is just my personal opinion, but your expertise in your proposed topic would have to be really good (i.e. you've written a few blog posts about it) for a conference to overlook this.

Recorded videos act as a portfolio for both potential speakers and conferences alike. I think some first-time attendees rely on past videos to determine whether a conference is worth going for.

(That said, we've set videos as unlisted for people who think that they've bombed their talks before — think leaving the stage in tears because the Q&A was harsh — but that's just goodwill.)

I don't know how often recorded videos are viewed--conference committees have to wade through a lot of applications.

But conference presentations are basically public events and if that bothers you, you should probably reconsider doing one. (Yes, per parent, if there's a real disaster--and those happen--they may be deep-sixed but I wouldn't count on it.)