You can't really know if the players - real people, or something of the bot farm.
Some of the coders could cloaking them very well.
So, I think, you need to have the test for them: some proofs/actions of the real people are playing
somewhere like introducive hive post, or activeness in the messenger/ guild chats, etc.
Confucius said:
Give a man a fish and you feed him for a day;
teach a man to fish and you feed him for a lifetime.