When you've got a lot going on, it's easy to let messages fall through the cracks. Your fB bot will help fans find the information they need when they need it—e.g., upcoming tour dates.
Your Facebook bot automates the process of telling fans what you're up to and how they can support you. More people will buy merch and concert tickets when you make it easy for them.
Facebook's organic reach has fallen below 6%, so savvy artists, influencers, and brands are now using bots to communicate. They're spending less money to significantly boost engagement: 90% read rates and 20-40% click-through rates. You should be next.