Good design can always find a solution -- off the top of my head, integrating some kind of sterile recyclable mouthpiece dispenser would assuage most concerns
Thanks, I'm familiar with all those sites and they are great resources for subjective experiences but as you said the data often need to be taken with a grain of salt. It's actually a little surprising nothing like this has been done yet in academia given the increased interest in the topic in recent years.
Wow, that case in contrast to the current one actually seems absurd. Upon further research though they were cleared of any wrongdoing on appeal in 2012 [1]