The one way a company can avoid that is to not go publicly traded in the first place. Problem is there’s a huge a mount of incentive to go publicly traded - specifically, it’s a huge boost to cash-on-hand, which can be crucial for expanding a business - so most corporations will basically do so without batting an eyelash at it. It’s a lot slower to build a company solely from net profits and private investors. But the cost of faster growth is a loss of control of the company.
Knowing how important the site is to the fandom, I’d be surprised if anyone lets it go under.
That being said, as a precaution, a PixelFed instance attached to pawb.fun and pawb.social might be nice to have.