There are always a lot of threads of stolen or destroyed cameras. Every shot one I have heard of was mounted to high for them to steal.
Do they not make them without a flash? I figure any poacher that trips a camera will soon be a thief as well to avoid evidence of their crimes. If you guys could have a camera that does not alert them of it's presence it may help catch them trespassing. As well as not getting your property stolen.
I have never had a trail cam. But my cell phone takes good pictures in the dark and has no flash. It is just left on auto and goes to night mode. The wife's digital camera can do the same thing even though it has a flash.
BTW glad to hear they just stole your card. That is a lot cheaper than the alternative. Not good folks by any stretch, but better than the average trespasser.