Just curiosity - I’d like to see how many old wallets still have untouched balances.
It's too much work to do just to satisfy your curiosity

But if you really want to: go for it and download the full data. Please post the results when done

Brute-forceable addresses: 45,724,975
Who's telling you this? Brute-forcing Bitcoin addresses is impossible in practice.
Conversion errors: 34
- Malformed/corrupted: 32
- Other errors: 2
Where do you get those errors? Which addresses are "malformed"?
Duplicates skipped: 7,097
I'll check:
cat Bitcoin_addresses_LATEST.txt.gz | gunzip | sort -S50% | uniq -d
This shows no duplicates. Can you tell me which duplicates you found?
My server is back online!