As for monetization, I figured why the hell not. If somebody really wants to buy a simple meshtag that they can memorize and reuse (maybe it has their contact info), I'm not gonna stop them :). This isn't really a moneymaking scheme, this is a side project and my first Android/iOS app.

As for anonymity, it's anonymous to other users. If you deselect the anonymous checkbox when editing the tag, other users will see your name, and that's it