I was horrified to see orange spots on the rock marking some of the holds at the The Cave in the Ring Road Boulders area today. See the photo.
It's hard to be sure if it is spray paint. I brushed one for a while and it sort of came off. I thought it best not to do any more.
My guess is that it is someone who is inexperienced and has no idea that this is not acceptable. There are no recent logged ascents that would suggest who it was. I only hope that word gets to them before they do any more of this.
Post edited at 18:15