It does not affect all pages, because Itch uses obviously some kind of scoring or whatever automatic means there are to evaluate the situation. It is not all humans that do the delisting. What affects this is secret. They will not tell. And it probably changes regularly.
There are some verified accounts. You see them with a checkmark. But I suspect this is something Itch will ask of you, and not something that you can apply for. Also, I doubt it would protect against all the quarantines and delistings. Neither does having a big account. I saw someone with 15k+ followers get quarantined.
So, if you are not informed about being quarantined or delisted, just ignore it. Act like a human. Act like a developer. Not someone trying to game the system or trying to circumvent delisting. Maybe their automatic sees you being a regular non hacked account user and speed up quarantine/indexing. Itch views the index as a bonus anyway and you should do your own promtion. That is what you will be told, if you get an official statement.