guizb

The tradeoff is that file systems like NTFS or HFS+ (and other journaled file systems), can take up more space and incur write penalties (To file itself, to the log, metadata etc...). APFS is as you point out a newer more modern file system, that has efficient resource sharing (like copy on write) and snapshot support.

You can have a fast indexed based search on APFS, but you'll pay for it with a very large index size, which the average user doesn't want.

The email landscape is substantially more complex now than it was three decades ago. The poster seems to be frustrated that he is mostly getting technical explanations to his rather emotionally fueled question. He is literally phishing for an argument on the morals of a big company deciding he is a potential spammer without absolute proof. He made it clear that his opinion is that there should be a system in place at Google that he can petition for his reputation, and that emails that look like spam should say 'potentially spam' rather than send it to a spam folder. All this while sending emails from an origin that is very well known for spammers and whose actions depict a typical bot account warming up. (Poster claims to on occasion initiate personal conversations with people who have their emails publicly listed, such as an author from a news site he might disagree with). There is just no reliable system today that allows for someone to host their email servers in a spam haven, not use relays, act like a spammer, and expect not to get your emails sent to spam folders.

It's insulting to the folks that are pouring their time replying to what they think is a user in need of technical assistance, only to eventually stop replying when it becomes obvious that he only replies with questions of morality and treats most answers as if they were platitudes specifically attempting to dismiss his efforts to communicate.