when I have thousands of thousands of thousands of letters written to them
Pestering them this often will not make them work faster, but it will risk that your mails get onto a literal spam folder automatically. There are many ddos attacks on Itch.
no one can answer my question - why is my page quarantined
Such questions usually will not be answered intentionally. It's secret why games go into quarantine. Maybe it has to do with the IP adresses you connected from. Maybe with the time of day you updated projects. Maybe a file triggered on a scanner a false positive. Some game engines are notorios for that. Maybe. Maybe. Maybe. Maybe. The list is long. It even includes that your account might have gotten hacked withour your knowledge. I have seen such things in the message board where this was told, after the hack finally was noticed by the account owner.
I don't have a huge following
With about 2000 followers, you are among the top 2% of Itch developers in my crude estimate.
I still hope my account gets indexed
There are accounts that are restricted from indexing. Your account is indexed. https://itch.io/search?q=Niven+Hedinger
If you hope for a permanent quarantine protection, this is unlikely to happen. They just cannot do that for security reasons. What if your account does get hacked, after such a protection and your files get exchanged for malware and are spread to your 2k followers on your 40+ games.
And my guess would be, that whatever you do, it constantly looks suspicious to the system. Like having your payout adress in one country and updating your files from another country. Please do not post details here. It would not help, as this is community support and not support. And the message board rules want that you make your own topic about this, among other things. But again: this is community support and not support.