You could be right. I am sure the entire situation was a lot more nuanced then I portrayed it in my previous post. And I am sure many of the email admins for companies had a lot more localised pressing technical issues to deal with for the companies they worked with then having the time to ponder on the implications of email centralisation from other businesses.
I will always promote technological independence though. And despite the hurdles that come with running any technological service locally/privately whether it be an email server or otherwise it is ultimately worth it for those who need/desire the full control and privacy of ones own data. At-least that is my 2-cents.
Siyuan. Ive been using it for a while now and find it very effective for my needs. Its gone through quite a few updates since i started using it and became open source in that time. It even has an android version as well which i do have installed on my phone but admittingly rarely use. I prefer writing information on a keyboard generally.