Hello,
I have performed analysis on this, and I will be implementing QR code scanning, hopefully in the next release of the plugin.
Regarding sharing a deposit address, you can either share the string (there is a copy button next to the address, in the [wallets_deposit] shortcode, and the QR code is displayed by default. If you believe there is an issue with this, please open a new thread. This thread is for scanning QR codes for withdrawals.
with regards