https://www.theregister.co.uk/2018/02/14/apple_homepod_stains/

Apple HomePod owners say the $349 smart-speaker is prone to damaging wood surfaces.

This from multiple reports by both reviewers and early adopters who have complained that the Cupertino music box has been leaving hard-to-remove white rings – kinda reminding us of the infamous Xbox 360 rings of death – on their tables and countertops.