Glad to see my thread getting the conversation going, that's what it's all about.
People have been riding there for ages, as Sanny says - we have done some GMBC and some Walker Cycles club rides there. We have never had any hassles, but rides have generally been with biggish numbers and in poorish weather. the new trails are much further east than the old ones, so don't drop down towards the main Castlemilk Road like they used to, so not quite so handy ambush points !
There has been a lot of time and effort put into the trails and when i was there a few weeks ago I was really impressed with how they are shaping up :
I do share all the concerns about the trails getting ripped up, and the safety issue is a real one for me, as it is a very handy place to ride with the kids as only 10 min drive from home. I don't know how it will pan out - hopefully if we can find safe and regular ways to ride it then the place wil become established for the right reasons