The question How can I remove the password on several RAR files at once? was closed by 1 mod as a duplicate of Can I remove a RAR file's (known) password without recompressing the archive?. Why?
The OP stated they need to batch process and don't care if it gets recompressed, Can I remove a RAR file's (known) password without recompressing the archive? doesn't address.
The only comment from the mod who closed the question was:
"I need to batch process" so write a script. DavidPostill♦ yesterday
which doesn't explain the closure as a duplicate, and "write a script" doesn't sound like a reason to close.