I know a lot of people aren't too interested in shoot-from-the-hip armchair psychological judgments, but I personally find that when Lucas isn't acting out, the most interesting aspect of his lolcowdom to me is trying to understand why his mind works the way it does.
Everyone will remember that Lucas tends to shuffle a lot of jargon terms into a salad, and is more likely to misuse them than to apply them correctly. One term that he's relied on for a long time, ever since the Shadow boxing bout with daniel, is "narcissistic supply".
I personally had never heard this term before Lucas used it, and wasn't sure what it meant, or even if it was technically psychological lingo, or just a creation of Lucas's mind. After watching this video, I now think that the term narcissistic supply was suggested by a therapist to Lucas about Lucas's own behavior, and in his typical fashion of projecting, he later used this description of himself as a cudgel to try to beat his enemies away.
I found a video that seems to describe Lucas very accurately, and suggests that his narcissistic tendencies put him in a position of always being liable for his actions. The YouTuber suggests that a distinction between psychotics and narcissists is that narcissists are always aware of the difference between right and wrong, and they're reliance on reality is necessary for their constant refreshing of their narcissistic supply, their ego buttressing mechanism of feeling okay with themselves.
He suggests that narcissists do not have diminished capacity, because they are aware of right and wrong unlike psychotics.
Just like CWC, Lucas has some very crazy beliefs, we know he experiences both delusions and hallucinations, but it's important to not think of him as a sick person who's not under his own control. Lucas has repeatedly shown an ability to conform his behavior to the norm when he risks suffering extreme circumstances.... Even when at his "worst" and unmedicated.
I find this fascinating, because it suggests that all of his arrogance and aggression are under his control. In the past he has constantly tried to blame women for his anger, suggesting that their "hypocrisy" and unwillingness to be with him is the root of his anger, washing his hands of all responsibility.
With the idea in mind that Lucas is a narcissist, who absolutely knows right from wrong, and understands where his own behavior deviates from the norm, it would seem to make him more of a immoral figure rather than amoral as we would think of a crazy person.
Hope others find this interesting:
Edit: Lucas's presentation of himself as a guru, a learned older figure with wisdom, who seeks to help younger women, seems to also fit the definition of narcissistic sadism: