Are all the bot reservations actually made with the intention of a human going to the restaurant? I wouldn't be surprised if some people used these bots just to prevent anyone else from making online reservations and screw with the restaurant/customers.
Based on the bot's code , it looks like all they ask for is a phone number and an email address. It might be a good idea to at least require a captcha, if not a credit card deposit of a few bucks.
Here's the thing though: you've got two people who are eagerly waiting for the purchase / booking of something to become available. One of them is going to do it all manually. The 2nd person has a bot to do all the form filling in leg work but will manually solve the captcha.
True, but there are multiple openings available. I guess they're probably already executing in parallel though. When I looked earlier the DBC average was 17 seconds... with browser form fillers you could beat that!