> you have full control on the stack usage, unless you have a user controlled recursion IMO, the reality with C is that one needs to be aware of input, whether

> you have full control on the stack usage, unless you have a user controlled recursion IMO, the reality with C is that one needs to be aware of input, whether using VLAs, recursion, or any number of other mechanisms (overflowing calculated values passed to malloc, etc). It isn't clear that VLAs are a significant departure from what C already provides in the way of unsafety.