Thanks for the feedback.
I bought a single site license for a client website, who wanted to hide the amCharts branding, so my only concern was that if anyone does get the license code, they could use it to do the same.
It would be nice if a license code could be added in the plugin settings, so it applied globally to all charts on the website.
Maybe not worth the development time for you though, if you’re not too concerned about exposing the license?