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A comment on I had to build a web scraper to buy groceries. Parent comment

Re:I had to build a web scraper to buy groceries by toomuchtodo on Saturday March 28, 2020 @10:01PM (#22715775)
Require SMS or callback confirmation of the order slot using a non-Google/Twilio/SIP number (mobile phones or landlines both work here). Provide for one time order cancellation at no cost, cancellations after that incur a $10 cancellation fee.

This should negate any technical advantage from a sophisticated entity. Queues still work, if managed properly.

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Re:I had to build a web scraper to buy groceries by gruez on Saturday March 28, 2020 @10:37PM (#22715910)
>Require SMS or callback confirmation of the order slot using a non-Google/Twilio/SIP number (mobile phones or landlines both work here).

How does this deal with bots that places orders on other people's behalf?

https://news.ycombinator.com/item?id=22715875

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Re:I had to build a web scraper to buy groceries by toomuchtodo on Saturday March 28, 2020 @10:58PM (#22715993)
It does not provide for them.
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Re:I had to build a web scraper to buy groceries by amelius on Saturday March 28, 2020 @10:06PM (#22715790)
Cancellation costs may be against local consumer laws.

But I think you wouldn't need it with upfront payment and some simple anti-hoarding rules.

Also the delivery address or payment id could be used in a way to make this fair.

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