There are many clubs (and other locations) that have pledged not to use Rz or any like tools. Here's a list of 'safe' places, as a start:
Pledging against Redzone
We don't have to stop enjoying things we formerly enjoyed in SL and these spyware tools are not a reason to stop going to clubs, but they are a reason to talk to the owner/management and ask the question, use the tools available to make a decision as to whether it's safe to turn on your music streaming. And once you've found a place that you like, that is also safe, then you're set
Savvy places are now advertising their privacy policies, and believe me there are plenty around.
I'm sad to see that some people and places I had respect for, have chosen to go down the path of privacy-busting for a deluded feeling they're achieving something, but it's their loss - there are plenty of safe and ethical places to visit in SL :smileyhappy: