Disable Marketplace Listing
Disable Automatic Affiliate Approval
You can block the spam/bot affiliate accounts by going to Affiliates > All Affiliates > Click on the affiliate's name to open up their profile and click on Block.
To prevent affiliates from the GoAffPro marketplace from registering to your program, go to the Marketplace tab and turn off the toggle.
You can disable the automatic approval of affiliates, by going to Settings > General > Affiliate Registrations and unchecking the "Auto approve registrations" option.