You need to “prove” your credibility to the audience. Their time is valuable. Why are YOU in front of them? What special skills do YOU have that you can teach them? The worst introductions I’ve had were basically “And now, here’s Tod.”

On the other hand, I was once on a speaking tour with a prominent Canadian scientist some years ago, and her introduction ran on FOREVER — it listed every bloody honourary degree, fellowship, award, peer-reviewed article, etc that she ever received. And worse, she insisted it must be read in full without edits. It took nearly five minutes. (And her presentation wasn’t that good either.)

I always travel with a printed introduction (in large print) and hand it to my introducer, but say something like “I’m not tied to it; feel free to edit or cut it as you please.” Usually, they’ll read it as printed.