Perry is not a normal person just playing games. I'm guessing he's in his thirties but has the mind and maturity of a teenager. Not his fault, just the way it is. People don't choose to be mentally ill, retarded or have other detrimental cognitive issues.
Both my step-mom and ex were home health care nurses who dealt with a variety of patients, many of them cognitively impaired either by birth or accident. My step-mom once had a patient who was a teenager but with mind of a 5 year old after drowning, being under icy water for about 30 minutes and resuscitated. Although cognitively impaired he still had teenage hormones and would get "frisky" with her when she was trying to bathe him.
There's no way to know for sure what Perry's exact issues are, but clearly he does not have an adult mind much less that of someone who earned a PhD...or BA for that matter.
He has only limited control over his behavior, IMO. I never take anything such a person says personally. They can't help themselves being the way they are. While it's sad, it's mainly a point of curiosity for me since empathy would have no effect upon him across the internet.