I don't have a dog in the fight, but I did spend some time reading the actual bill since these blog articles felt like more political campaigns than informative pieces. The last time this came up I posted https://news.ycombinator.com/item?id=7303232
The Seattle city council passed a law that made so-called "ride sharing" services legal after intentionally withholding prosecution for over a year. The law isn't perfect, but it does feel like it strives to balance protecting existing investments with new services. The most salient changes about the bill:
1. Seattle defines uberX, Lyft, etc as Transportation Network Companies (TNC) and declares all drivers as "for-hire" drivers, which is a legal distinction that means Seattle can regulate them.
2. TNCs are taxed at $50k for first year. Second year is the greater of $50k or .35% of gross revenue.
3. No more than 150 drivers may be associated with each TNC at a time, and each driver can work only 12 hours per 24 hour period. Previously the law would have limited 300 drivers per TNC per quarter regardless of who was active, and this was "the cap." For comparison, there are 1100 taxicabs in the city.
4. Drivers can't double dip: They can't both drive for-hire cars and also do uberX on the side. They also can't work for both uberX and Lyft.
5. Rates may either be flat-rate between preset zones OR subject to RCW Chapter 19.94. RCW Chapter 19.94 defines appropriate measurement devices that may be used with commerce, which I think precludes most cell phones... uberX would need to install meters it seems and precludes surge pricing.
6. The insurance requirements are stricter than what uberX or Lyft provide today and are mostly in line with existing taxicabs.
7. There was a 30% increase in the cap on cabs at the same time.
8. TNCs have to report their activities to the city, which will be available to the public for inspection.