Guards, fences, etc. are rarely a feasible protection strategy due obvious cost limitations. Law enforcement of regulations takes place after the fact, after the damage is done. Education is the key. Fortunately we have botanical gardens, zoos, aquaria, etc. which allow the public to see these organisms in protected zones or simulated natural environments. These are the public outreach collections.
Education takes time, and also requires willingness to accept education.
I am not talking about making data inaccessible. Site data IS currently accessible, but not through instantaneous and anonymous queries. I provided the example to illustrate that the collecting problem is real and that I have encountered it on my own casual botanical forays. More of a problem may be the pool of uneducated people, who on finding a database such as the one for Wisconsin orchids, might then find precise site data linked to the pretty picture of the plant in bloom. This is not an education, but an invitation to visit.