McMaster Versus Maria's Walk

It seems that McMaster can't quite figure out a welcoming approach to this historical trail. 

Signs have gone from "no trespassing" to "use at own risk" and now, "do not use" with the unwelcome addition of a chain link fence at the top and the bottom of the west campus trail.
Why all the changes from threatening to personal responsibility, and now back to prohibitive with physical barriers? 

Bottom of Maria's Walk trail 2013

Top of Trail C 2016

2018 top of trail with Do Not Use sign and fence

2018 Fence at top of trail looking down

2018 fence at bottom of trail

Historical photo of Thorndale trailhead when the area was
and RBG Nature Sanctuary

                              

Selected links

• http://www.restore-cootes.org/2013/05/marias-blocked-walk.html
• http://www.restore-cootes.org/2015/01/re-open-and-repair-marias-walk.html
• http://www.restore-cootes.org/2017/07/lost-nature-trail-at-mcmaster-video.html
• http://www.restore-cootes.org/2014/12/who-was-maria.html
• http://www.restore-cootes.org/2015/05/trail-fragment-rim-prospect-circuit-to.html