Just Google it and you'll get a couple of decades of debate about this topic, right here on PPRuNe.
Same people, Same opinions, and I don't believe any increase in the occurrences of accidents involving this procedure. Proper precautions, proper equipment, proper training, there is no reason for concern here. If you don't want to do it, don't need to do it, then don't do it.
I even threw in some peripheral threads just to fuel the fire some more!
Hot Refuelling
Offshore Refuel Scenario
Hot refueling offshore Newfoundland a hot topic!
Hot refuel during Hover