If you think that's bad, wait until you hear about how many unpaid volunteers are running FOSDEM as a "free and non-commercial event"

I hope those volunteers decline to volunteer their time to setup and run jacks presentation then

I hope that they do whatever they personally feel is an appropriate use of their time, and that know-it-alls in the crowd don’t try and ruin anything that the volunteers do end up deciding is worth working hard to set up.

Agreed minus snark

So conference organizers get in on the grift while the community is robbed by whatever crypto scam/other bullshit this guy sells on stage? I guess it's fine if they also add a large and prominent "THIS GUY IS TRYING TO ROB YOU" banner to the stage and livestreams.

I think the people who attend open source conferences can spot the equivalent of the timeshare presentation.