Hey!
I have 8 Sonos devices and even if nobody is using them they produce tons of logs like these
Have you also noticed this behavior?
Besides the fact that it is annoying I could also imagine that the SD card the PI is running on does not like it in the long run.
Thanks for feedback
You can maybe filter it out through the recorder setup.
With the new relation based database it is not that much that is written and it is collected and done in bulks, so the SDcard does not hurt much more from this compared to what else gets written, but a SSD is always a good idea. 
