Which is great, assuming you trust that a "delete" actually results in the data being removed from Reddit's possession...

There is right to be forgotten for EU, And probably state by state laws in the US. but it might be too little too late.

After I did this, they just restored all my previous posts!

I thought this too at the time. I ran the scripts, check my profile to make sure they were gone, then deleted my account. Went back the next day an a lot of my posts were back. And I couldn’t delete them anymore since I killed the account.

But I just checked, and they are gone. I can search google for my old username, and just references to my u/ by others is seen.

You might want to check again; I think there was some cache or mirroring that the deletes took a long time to propagate through.

Yea done it twice and both times my account magically was restored