I wish that it would help. Save Kosci put a huge amount of effort into collating evidence and personal accounts of the damage that feral horses were doing, and were basically shrugged off by the NSW government. It's a government that time and time again has shown that it doesn't respond well to criticism of its policies, especially environmental ones.
Myself, I'm a caver and a bushwalker. Been more of a caver lately, and have thus had a lot of trips to Yagby (Yarrangobilly) and Cooleman, maybe 6 in the past year, with a couple more planned over the coming month. I don't have the longest connection with both, as I grew up in Sydney before I moved to the ACT, but I was incredibly excited a couple of years ago when I first managed visit first Yagby and then Cooleman. Cooleman in particular is an absolutely amazing place- wide open plains, a fascinatingly complex karst landscape, stunning caves, three beautiful gorges, sub-alpine woodland, a wall of mountains lurking on the horizon, and a complex Indigenous and European history. It's the sort of place you could spend decades exploring and still be finding new things to love. But it's also a fragile landscape, with little details that can be lost only too easily like the limestone A-Tents (
http://www.ackma.org/Proceedings/procee ... Spate.html). And everywhere those details are being obliterated by the destructive presence of the horses in the plains. A-tents bulldozed by horse hooves, waterholes sullied, creeks turned in muddy wallows, cave streams no longer fit to drink, a labyrinth of tracks forced through the vegetation (each one eroding and pouring silt into the waterways), food sources for native animals obliterated by the insatiable hunger of a legion of starving feral horses.
The horses impact people too the first response to them is 'ooh, brumbie!', but then you have more to do with them. They invade campgrounds (as safe spaces from the feral dogs), stampede past tents in the night with bare centimeters separating the occupants from the horses' hooves, leave mountains of dung in most every open space so that clamber through the stuff constantly to go anywhere (last time I was at Cooleman, the mounds of horse poo would have been about 3m apart), menace campers for food, scratch themselves on parked cars, rummage through campfires and campsites at night in their dozens, and are an everpresent driving nightmare. Over the last couple of years I've seen the scale of their impact on Cooleman in particular, but also Yagby, exponentially increase. It's getting to the point where such a delightful place can be downright unpleasant to be at, as you try and pick somewhere to pitch your tent that is neither covered in horse dung, nor at risk of being flattened at night.
Something needs to be done, as otherwise this gem of Northern Kosciuszko will be forever tarnished, and a part of what makes it a unique landscape and ecosystem forever destroyed. But closing the campground, forbidding access, and conducting a token cull that will be no more than a drop in the ocean is not the answer. It'll never be the answer, and I think NPWS knows that. But they're out of options thanks to successive poor legislative decisions by the NSW government. So while I detest that my plans at Cooleman for the October Long Weekend have been thwarted, I guess I'm glad that they're at least doing something to control the feral horses. I just wish it was something that would actually make a difference- I would happily sacrifice my access to the caves and bushwalking for a meaningful and permanent reduction in the feral horse population, and the protection of the natural legacy that makes the area special.