" whilst one lot of theoretical scientists piss on the idea of black hole creation another lot point out the very high risks of this level of experimentation"
Which scientists are pointing out the risk of these experiments?
Professor Otto Rössler, a German chemist:
Walter L. Wagner, a botanist, and Luis Sancho, a Spanish science writer:
These are scientists who do not have any relevant expertise in high energy physics.
Experiments at the LHC are a fraction of the energy of cosmic rays, which have bombarded the Earth for billions of years without producing a runaway black hole. The reason for this is that either the black holes can't be created like this or, if they can, they don't last long enough to do anything.
Plenty of informed content here: http://press.web.cern.ch/backgrounders/safety-lhc