They argue a few other reasons to eliminate "thank you" from a presentation as well—though they may be controversial—at the link below. 3 Reasons to cut "thank you" from your next speech| Ragan.

Ten minutes before you're due to start, while everyone is finding their seats, run the presentation. It'll cycle 5 or 10 times before you start speaking. When you get up, start your presentation ...

49 percent of active and former members of the armed services feel uneasy with the expression "Thank you for your service." ...

If you see a veteran today, thank him or her for their service. More than thanking them, though, think about the experiences that made them a veteran. Appreciate the hardships they and their ...