The rideshare for Autonomous Mutant Festival is no longer hosted at this site. It’s a lot of work to keep the forums from getting flooded with spam, and people also dislike signing up for new websites.
The rideshare is now a “room” hosted on the Matrix platform. If you’re not already using Matrix, you should be! There are a whole bunch of cool “rooms” and you only need to sign up once to be able to join any number of “rooms”. Matrix is free, open source and doesn’t have any ads or other junk.
Here’s more about Matrix: https://matrix.org/blog/home/
Here’s the Rideshare “room”: https://riot.im/app/#/room/#amfrides:matrix.org