I'm at almost a month of not updating (to 5.8.4) and about 2 weeks of saying no via clicking the X. We'll see if mine violates my wishes at some point in the near future.Not sure if this has already been posted but last night my car downloaded 5.8.4 automatically without my permission. I have purposely been not updating for about 2 weeks after reading this thread since I am planning a long road trip and don't want the hassle of flaky charging on the trip. I came out to the car this morning and was greeted by a message on the touchscreen explaining the new update and why it's good. I think that's a bit Orwellian (ok that's an overstatement but still...)
Normally I don't hold back on updates but, to my knowledge, there's nothing I want/need in 5.8.4 so I'm holding off for now. (In part to maybe add to the "more people aren't updating" telemetry that might nudge Tesla to deliver the suspension change #2.)