Alternatively you just have inferior cutting boards.
Also, historically speaking holes in boards they made bread on were there explicitly for the purpose of pulling out dough and shorting the customer. It's not unlikely that the orginal intended use for holes in cutting boards was in fact for putting food through. Regardless of if manufacturers of cutting boards bother to consider this when designing cutting boards today.
Okay I tried looking up to see if you were right about the holes and couldn't find anything about holes in cutting boards. Most surviving antique boards don't even have holes they have a full on handle. In fact cutting boards as we know them are derived from chopping blocks which were generally only used by people like butchers and heavy tooled non-cooking trades. Since counters and tables were made of wood anyway many people just used whatever counter or table was handy when preparing food. It was only after the mid -20th century that widespread use of cutting boards as we know them came in to use.
https://www.choppingblocks.com/blogs/articles/76743621-the-origins-and-history-of-the-chopping-block
Pictures https://www.pinterest.com/jkadamsco/cutting-boards-through-history/?lp=true
However, if you could find an article about bread boards like you described I would love to read it. It's always interesting to find little tidbits of useless knowledge.
I have done further research myself, and while bread fraud was definitely a real thing I am unable to find any information about the use of a hole in a board to do so. I know that I read it somewhere, but in hindsight I cannot be certain it was a credible source. To read more about bread fraud, https://www.foodwatch.org/more-information/history-of-food-fraud/
So not sure where the Bread Fraud topic came from and the article is more about food fraud as a whole but it was quite interesting. Thank you. Talk about your whoopsie. Sorry, I sold you arsenic instead of the plaster of Paris to be your sweetener. My bad. At least only 20 people died.
Bread fraud mostly involves underweight bread, which can be done by weighting the bread and then removing dough through a secret hole if your baking bread in front of your customer. Of course if you are alone bread fraud is much easier to commit.
Also, historically speaking holes in boards they made bread on were there explicitly for the purpose of pulling out dough and shorting the customer. It's not unlikely that the orginal intended use for holes in cutting boards was in fact for putting food through. Regardless of if manufacturers of cutting boards bother to consider this when designing cutting boards today.
https://www.choppingblocks.com/blogs/articles/76743621-the-origins-and-history-of-the-chopping-block
Pictures https://www.pinterest.com/jkadamsco/cutting-boards-through-history/?lp=true
However, if you could find an article about bread boards like you described I would love to read it. It's always interesting to find little tidbits of useless knowledge.