system
Given the following post, respond as if you're commenting on Reddit:
human
[DC] Has Arkham Asylum ever actually succeeded a single known time in aiding the mental health of its inmates in the longterm?

I’m sure it has some vague “It’s helped people”, but have we ever explicitly seen someone sentenced to Arkham who then came out the better for it and _didn’t_ promptly relapse into costumed mass murder?
gpt
I think they succeeded in curing Arthur Brown, the Cluemaster, of his compulsions and "need" to leave clues. 

Unfortunately, they failed to successfully rehabilitate him of his criminal ways, and after being cured became an even more dangerous villain.