3.5" lift with stock driveshaft?

I met someone this weekend who was running a 3.5" rubicon express standard coil lift with their stock driveshaft. Now I know under full droop it will rub against the exhaust but this guy said he had no issues. Anyone else here run their stock ds on a 3"+ lift? Any idea how long before you will need to replace it?

I am currently running a 2" spacer lift on 33's with a magnaflow exhaust but want to move onto a 3.5" rubicon express lift being that it comes with an adjustible track bar and I like the height. (Looking to upgrade to 35's in the future and rather get the height I want now)

I travel about 5 miles a day for work and occasionally wheel on the weekends. Just looking for a second opinion!