People are getting fired constantly as companies move to automate more jobs, everything will end eventually. I don't think it is nuts.
A 'real' job should give you some notice, may give you a payout and may help you find another one. A gig on here will simply vapourise. For many that'll be fine, it's play money. If you're feeding your ten kids then it's a problem. And these things are cyclical. There may be no other avenues out there if the whole scene is quiet.
Companies are more ruthless then ever and they see their employees as expendables, just ants on a spreadsheet. People don't have job security anymore, this isn't the 1950s.