Eventbrite

 Eventbrite  is an event hosting silo that can be used for free and paid events.

has built to expose MF2 data for eventbrite events.

Criticism

 * WARNING: https://twitter.com/branaby/status/987206339268169728 citation: https://www.eventbrite.com/support/articles/en_US/Troubleshooting/eventbrite-merchant-agreement?lg=en_US#8
 * "Wow. I guess it’s time we all stopped using @eventbrite. They claim the right to attend your event, film it, and own the copyright. https://www.eventbrite.com/support/articles/en_US/Troubleshooting/eventbrite-merchant-agreement?lg=en_US#8" @branaby April 20, 2018
 * Followup: Eventbrite backed down and removed those terms on 2018-04-22 according to The Guardian.