The photo shows some drilled holes in the top of the crag at Bridestones in West Yorkshire. Someone has decided that drilling holes for some type of removable bolt is a good idea at this crag. This has been reported to the BMC and the person reporting said that they had approached the two guys doing the drilling who said they were practising SRT which suggested to them that they might be cavers.
The BMC conservation and access officer realises that the vast majority of cavers are probably very aware of the sensitivities of no bolting or drilling on gritstone crags, but would like us to spread the word around the caving community that drilling, placing bolts (even removable ones) really isn't appropriate on grit, or any established trad crags for that matter? Practising SRT should be fine in most places if using trad gear which can be easily removed after use without causing damage to the rock.
The BMC conservation and access officer realises that the vast majority of cavers are probably very aware of the sensitivities of no bolting or drilling on gritstone crags, but would like us to spread the word around the caving community that drilling, placing bolts (even removable ones) really isn't appropriate on grit, or any established trad crags for that matter? Practising SRT should be fine in most places if using trad gear which can be easily removed after use without causing damage to the rock.