What he needs is a psych doctor and meds. I don't know why he thinks otherwise when he uses his supposed bipolar diagnosis in arguments. You have an incurable condition that drastically affects your life. You have no one to blame but yourself as a grown adult who knows he has a problem and fails to get it treated. As far as I know he's said he has insurance so... But I am sure that kiwifarms probably caused his depression, not his own mental and emotional instability that he refuses to get help for.
Even if Lou were to seek help, he'd still have to follow through with the treatment. If I could powerlevel here a little bit, I've actually worked with at-risk people before and Lou's situation reminds me of this case I once worked on, we'll call the guy Lenny. Anyways, Lenny had this terrible habit of being unable to budget for anything; he'd take money that was supposed to be saved for other things and immediately blow it all on junk food. If he wanted more junk food and didn't have money, he'd try to panhandle in convenience and grocery stores to get people to buy him shit. Unsurprisingly, he managed to get banned from several local stores and was starting to have health issues from all the shit he was constantly eating.
One of the goals of Lenny's treatment was to be given a small amount of money and only buy specific items with it, first while being supervised, then doing this on his own. When someone went shopping with him, he did fine, but the second he knew people weren't watching him, he'd go straight back to buying junk food and grifting from other shoppers. I remember at one point asking Lenny "you know damn well you shouldn't be doing this, why is this still happening?" to which he basically replied, "because I can".
We tried different methods to help Lenny with his problem, but he ultimately ignored everything and refused to work with us (this whole treatment was mandated, so Lenny couldn't just quit). Lenny continued to panhandle and it eventually got to the point that most stores in the areas preemptively banned him on sight and most of the locals knew him well enough to not give him money. Sadly, his treatment ultimately ended with him becoming pre-diabetic and facing jail time over shoplifting excessive amounts of junk food (it takes a LOT of shoplifting charges to escalate to a prison sentence). Naturally, Lenny blamed me and the other people working with him for not giving him more money, saying that if we just gave him money and didn't hold him accountable for his poor decisions then he wouldn't have had to panhandle. And at the same time, he blamed everyone else who knew him; according to his logic, he wouldn't have to shoplift if people hadn't caught on and stopped giving him money.