It's not far off. A lot of these I could link to Alex quite easily, and provide examples.
Ok, let's try.
- Exaggerated self-importance - Alex is nothing more than idea guy behind YS, yet he considers himself to be the heart of the project. Also, sperging about his salary.
- Sense of entitlement and need for constant admiration - yes and yes. His convo with Mike Z is a perfect example where he outright says it. Also, his departure from chans.
- Expects to be seen as superior with nothing to warrant it - "ISN'T THAT IMPRESSIVE THAT I"VE MADE
some basic level shit with stolen assets IN THREE MONTHS?" Him looking down upon clones and fangames as "unoriginal copies", even though YS is basically crippled mechanics from Persona 5 and Hitman with bought assets.
- Fantasies about success, power, brilliance, beauty and perfect mate - "Kickstarter will hit 1 000 000", "fantasies about other games that he will make", "YS is as complex as Hitman and Persona and you see a mountain there that you can climb", LOL NO and
MAI WAIFU "I've always wanted a girlfriend who acted youthful, babyish, feminine, innocent, naive, childlike, pure,
uncomplicated, unsophisticated, trusting, charming, polite, pleasant, sweet, lovable, cute, cypheric, malleable..."
- Believe that they are superior and can interact only with equals - multiple times he sperged about children on his Discord server, how he melted down on loserz forums calling people all kinds of things, how he called Sisefs a child, when she tried to help him with his homework from college.
- Monopolize conversation - all the censorship on every fucking account and place that he owns. Also, 3000 for subreddit just to stop people from shitting on him.
- Expect favors and compliance - this man wants people with professional level of skill i.e. good enough to be paid to work for him for free.
- Take advantage of others to get what they want - Sisefs and Alex literally calling Mulberry a useful tool without realizing what's wrong with that.
- Inability or unwillingness to recognize the needs and feelings of others - Alex melting down over his parents trying to put him into college, him being interested in Sisefs only as a living Real Doll, his convo with Cleveland, where he doesn't get why is he even mad over Kris drama
- Be envious and thinks that other envy him - Alex envied guys with girlfriends IRC, then sperged in his private chat, that his critics "have no talent, so they use their time to shit on others"
- Arrogant, pretentious and conceited - just read anything that he posted anywhere, from his Gaia posts to his rape fanfics, from 4chan posts to examiner articles, it's him in a nutshell
- Insist of having best of everything - not sure about that, you are free to correct me.
Also
- Impatient and angry when they don't have shit their way - every forum and board that Alex left after a meltdown, him talking other devs into canceling their games, all the people that he banned everywhere, all the times when he raged at games, that fucking time when he was 22 y-o and his mother cut steak for his small nephew but not for him
- Easily feel slighted - see above
- React with rage and contempt, try to belittle other people - GREMLINS and all the sperging about children on his discord, untalented people and trolls
- Have difficulties with regulating emotions and behavior - threatening Apedois with suicide, "I want to kill my parents", CUPHEAD
- Problems with stress and adapting to change - JUST FUCKING LOOK AT HIS FACE and him being shitty coder and game designer for almost a decade.
- Depressed and moody when he falls short of perfection - all the time
- Secret feelings of insecurity,
Hate and shame, vulnerability and humiliation - if Alex didn't have those, he wouldn't come blame his downfall on gremlins and trash drama youtubers.
Problems
- Relationship - Alex had problems with any kind, that aren't blindly kissing his ass
- Problems at work and school - YES
- Depression and anxiety - just look at all the shit this nigga does post 2019
- Physical health problems - obviously
- Drugs and alcohol - ONLY
CUM MILK
- Suicidal thoughts and behavior - only to make people do what he wants
Keep in mind, that diagnosis based on online activity is the worst type of diagnosis.