That's a very good question. My guess is that we might see an implosion or two, but I highly doubt we'll ever see a struggling b2b SaaS company cause serious pr

That's a very good question. My guess is that we might see an implosion or two, but I highly doubt we'll ever see a struggling b2b SaaS company cause serious problems for its former users when it goes out of business. If a company could inflict so much damage in the broader ecosystem by when it goes out of then it can charge high prices for what it offers. As a general rule if you're providing something people sttruggle to function without. then you can always stay in business if you want. Of course, there are edge cases involving mismanagement, but I suspect they're extremely rare. Perhaps what might be more likely would be acquisitions where the acquiring company kills the service for some reason - like what happened with Parse.