I'm a nutcase that believes in it too.
I've had my own thoughts about how determinism would work for me, and I've only recently found Robert Sapolsky out through
this video/conversation. I found his theory aligns well with how I've thought about it like the complexity and unpredictability of determinism and the consequences of it with guilt and responsibility.
Actually, in a similar vein, I've been thinking of how it could work with how a person sees himself and their past actions. For example, an addict admonishing themself for relapsing, or an abuser that can't forgive themself for their past. When looked through a deterministic outlook, their responsibility can disappear and its associated emotions can too. The addict learns that it's just their brain going through its process and not a failure of will, or the abuser learns that what they've done is just what results from a myriad of factors that they should've addressed and have confronted; and in both cases, they both learn to forgive and better themselves.
I've had this passing thought that this hard determinism can be useful for like people in this site. Although, I'm just unsure how it'll be received by people and how they'll choose to interpret it. An uninformed interpretation could easily twist the two scenarios above such as: the addict is doomed to never recover because they don't have free will, or the abuser is horrified that what they've done is inherent to their nature/character and never forgives themselves. I think there's a degree of nuance to know about determinism before it can show its merits, while the risks associated with a bad reading could be disastrous, so I'm a bit hesitant to spread it especially considering my limited knowledge on it.