I got the newsletter in my mail at work, and opened the chrome on my motorola phone to check knuffel. It works just fine and always has, but I tried posting in the july donation announcement thread (and have never tried posting from my phone before), and got an SQL error.
I am aware knuffel doesn't have a "mobile" version and that's fine. Just wanted to report the error in case you needed the info!
General Error
SQL ERROR [mysqli]
Incorrect string value: '\xF0\x9F\x98\x8D\x0AI///' for column 'post_text' at row 1 [1366]
An SQL error occurred while fetching this page. Please contact the Board Administrator if this problem persists.