I've pushed new updates that contains adjustments to the plugin via GitHub. 3 days from now, I will finalize the plugin and submit it to WordPress Plugin Repository.

As of now, I'm still doing more tests on the plugin until such time that there would be a stable version of it.

@roelandp Hi. :) You may wonder what was the transfer I made to you the last few minutes. I decided to test the plugin out and randomly used your username as Payee.  It turns out that the mechanism for checking Steem transfers for the plugin worked great. Thanks! :D