Many people’s first exposure to bots came from so-called sneakerbots. Sneakerbots are used to scan websites for inventory and automatically complete the checkout process. The use of these bots has shifted to the long-tail of DIYers that simply want merchandise for themselves or are purchasing goods for resale as a side-hustle. As it currently stands, more than 30% of all internet traffic is generated by unwanted bots, a number which will exceed 50% within the next few years.
Source: https://www.helpnetsecurity.com/2021/03/03/sneakerbots-proliferation-diy-bot-operators/