What's to stop the powers that be from lowering those threshold requirements, though, now that this has happened? Also, "jurisdiction" is terribly complicated

What's to stop the powers that be from lowering those threshold requirements, though, now that this has happened? Also, "jurisdiction" is terribly complicated when it comes to sales taxes. A jurisdiction can be defined by the type of goods sold, date of sale, location, and sometimes (often?) there are overlapping jurisdictions. Full compliance is incredibly hard to achieve without a relatively pricey sales tax software solution that is actively maintained and updated every time a city, township, county, state, etc. decides to adjust something. If applied strictly this would essentially work to lock-in established, wealthy concerns and stifle entrepreneurship.