I proposed an idea to speak at JSConf US, so I travelled domestically to speak. I was not paid to speak. My travel and accommodation was fully covered by the event. My employer did not pay my travel expenses, and I used my PTO to speak. It took me 4 weeks to prepare for my 25 minutes speaking slot, and I had a great time. I'm a woman who has been speaking for 6 months. Also, JSConf booked my travel and hotel stay so I didn't need to use my credit card, which was nice.