Maybe because he couldn't find it - it's always easier to open a new topic and start the whole story from the beginning.
What? A user has his own post history right from his own profile, there's a link to a user's own post history. Well, if that's already too complicated for some newbies, how do they even survive? Asking for a friend... jokes aside.
I've got wallet.dat and I was told by many different people that it's going to be easy to crack
I glimpsed over your first topic from 2023. Were the details you posted from some notes from your father?
Have you tried some rather obvious choices for "THE DATE" like date of Bitcoin Whitepaper, date of Bitcoin Genesis block, date of your father's registration on bitcointalk, his birthdate, his wedding date, your birthdate? You may need to try various typing styles or what's just common for your father. Have you tried
THE DATE literally, as written here in italics?
To systematically check every possible way and not missing something AND if you're that paranoid to avoid using tools for this, you need to be very good at not making errors and document every trial carefully. Reliable and reputable tools exist and are better for this, but you need to learn to use them properly when you want to refuse "easy guides". Many guides by good and reputable members are already in this forum.
I'm not going to download your stuff, ...
I see no problem with using well reputed tools. You can do your stuff on an offline computer and completely wipe it afterwards, if you don't trust the tools. Just don't let it go online after you've exposed your wallet.dat on it.
... I'm not going to follow any "easy guides" on the Internet, I'm not sending you anything
Well, then do your own research. Your wallet.dat file won't reveal its password by itself. Whatever guide you find, you can ask here if you don't understand some steps. You may get answers here, too.
Of course, you shouldn't send your wallet.dat file, that's a given. You shouldn't even keep this wallet.dat file on an online computer which security status you can't assess! Store it in multiple copies only on offline devices and/or storage media. Judging by the balance of the one address you revealed, I recommend multiple redundant copies, two distinct places to avoid a single point/place of failure.
Sensitive data like private keys in a Bitcoin Core wallet.dat file are encrypted with a random encryption key. This encryption key then is AES encrypted with the wallet.dat's encryption password/passphrase, IIRC. To access and use private keys of your wallet, you need the wallet's encryption password/passphrase. The AES encrypted random encryption key by itself doesn't reveal anything about your wallet's private keys. So it's safe to share this AES encrypted chunk as long as you keep your wallet.dat safe and secure and only in your possession.
In your other thread you refused to get help by a good member of this forum who is unfortunately not anymore amoung us. When you say, tools like btcrecover and its setup to tackle your problem is above your head and you don't want external help from forum members, then you probably only have below professional option left.
If you want professional help, I can recommend to contact Dave (you will need to read past first posts full of skepticism by natural crypto space reflexes).
There has to be some legitimate business that does just this( recovers people's Bitcoin
Talk to Dave:
Bitcoin Wallet Recovery Services. And watch out for phishing sites!
Dave will not ask for your wallet.dat file, he only needs that AES encrypted chunk of bytes. There are tools to extract those specific bytes from your wallet.dat. Dave will guide you accordingly in private communication. You only pay Dave if he accepts your challenge and when he succeeded to find the password of your wallet.
If I somehow get the whole balance, I can pay 1 BTC, no problem
Promisses, promisses, ...
Good luck and progress with your wallet.dat.