The Conservation Commission is working on the problem and plans to talk to the police and show them the affected area. So if you have a problem with paint-ballers on the trail, your best bet is to call the police. Word has it that the Mayor was walking his family along the trail when the paintballers scared his wife and kids. I haven't heard of any problems along the trail there since then. Thom has done a tremendous amount of work on this report, and he also chairs the Trails Committee and does a lot of trail work.
Mosquitos are to be avoided since the arrival of the West Nile-like virus.
Most adults have no need to fear the virus. It's primarily the elderly, infants and people with immune problems that are at risk for developing encephalitis. From what I understand, the virus itself is NOT encephalitis. So most of you are perfectly safe hiking. It's the same population that is vulnerable, mostly the elderly.