I don't think this is true. My startup had a couple desks in the Palace of Fine Arts when they had an ill-fated attempt to convert part of it to a co-working space. They shut down co-working to turn it into a full-time event space. The building is basically one giant room, with a raised mezzanine floating above part of the floor. It has one small permanent theater on the north end, and they convert the southern end into a larger theater for music shows, and this is the seating chart being shown in the above link (I saw a Ninja Sex Party show there one time, but this theater isn't reflected on the tour photos. When I was working there in 2016 it was an exhibit for Hunger Games).
The event link makes it look like it's just referring to the theater. It even mentions a "door time".
Even if it is the whole hall (which used to be the Exploratorium, back in the day), there's still no way in hell they'd get 30,000 people inside. According to https://palaceoffinearts.com/info/, the maximum capacity of the facility is 5,000, and even that would be very crowded.
> there's still no way in hell they'd get 30,000 people inside
Yeah, I'm pretty sure that would be physically impossible, unless they are planning on hosting most of the conference on the grounds, parking lot and maybe surrounding streets.
>> The Palace of Fine Arts is a theater, not an exhibit hall. It's a completely unsuitable location for a conference.
This is not the case -- The Palace of Fine Arts is an excellent conference location - expansive and with mezz levels for private presentations, etc. I've done several conferences there and also presented.
It has beautiful outdoor garden spaces for relaxed 1:1s and doesnt feel at all like SF as most people imagine.
