Just because you didn't run into these problems doesn't mean they don't exist. The clients I do work for have very complicated requirements and expect a lot of

Just because you didn't run into these problems doesn't mean they don't exist. The clients I do work for have very complicated requirements and expect a lot of dynamic interactions from the forms they pay for. It could be a non profit trying to determine if a new client's family qualifies for federal benefits based on family size and income level. It could be a gas pipeline company trying to calculate how much natural gas they can deliver on a 60 day contract during summer months versus winter months. It could be calculating the medication dosage per body weight for a pharmaceutical company. There was the life insurance example which I mentioned in the article. Ruby will parse "3.9e3" properly. However Ruby on Rails param parser tries to prevent bad data from entering the system. So the e gets sliced off. There are things that you can do to prevent data from being entered that way. However like I mentioned in the article and commented on multiple times its not always my choice. And overwhelmingly the product managers and stake holders I interact with would prefer to not see numbers submitted in scientific notation form. There's no reason why you would want to submit your age like that. It's highly unlikely anyone would need a product quantity value in that format. And maybe most importantly the people who pay tell me all the time they don't want it. Does that make sense?