Here are some of the features:
The beta will be limited to a small amount of users! Once all spots are filled, the beta signup will be closed and it will stay private until the beta is finished and the bot is ready for the public release. That means if you join the beta you have an advantage of being able to use the bot several months before public release and thus can profit from early access. Because the bot is already working and it is a tool to make money with the beta is not free. This also weeds out any unserious people. Another reason is that similar tools are expensive and/or subscription based. I am not sure of the final price of this bot yet, but it will be at least $250 (+taxes) if its onetime, or it might also be subscription based. As a beta tester you will benefit from being able to get the tool early and for a reduced price of $150 and you do not have to pay a subscription if the bot later becomes subscription based for all of the 1.x versions! If later (in a few years) there will be a 2.x version, beta testers get special conditions to upgrade. Further beta testers can keep the 1.x versions free of charge forever without subscription should they choose not to upgrade to 2.x.
If this was too confusing: Access to the beta costs $150. After the beta is finished and the public release is ready, you get free upgrades for all of the upcoming 1.x versions. It might be a subscription later which you do not have to pay as a previous beta tester! You can always keep/use the bot without subscription. If there will be a complete new 2.x version in a few years you get special conditions to upgrade, but still can keep the 1.x version of course forever.
Also you support development with the fee :)
