As a programmer surely just a 0 (for starting for loops), a 1 (for off by one errors) and 0-9 (for regexs) suffices for 99% of typing? Typing other numbers seem

As a programmer surely just a 0 (for starting for loops), a 1 (for off by one errors) and 0-9 (for regexs) suffices for 99% of typing? Typing other numbers seems like it should be avoided wherever possible.