I was invited to speak at @datanativesconf in Berlin, so I travelled internationally to speak. The event gave me a free ticket, and I was not paid to speak. The event did not pay for my travel and accommodation. My employer did not pay my travel expenses, and I was a student when I spoke at the event. It took me 4 days to prepare for my 30 minutes speaking slot, and I had a mostly bad time. I'm a woman who has been speaking for 4 years. This was a for profit event.