IJustHelping,
Thanks for trying to help, but see, e.g., my prior comment ("miwwgr replied on March 21, 2017"):
I believe the gist of my own and others' disappointment/outrage at this situation is that we believe that as Office 365 subscribers, we believe we are entitled to an ad-free version of outlook.com webmail--an improvement over what "the whole world
gets...for free."
There are many situations where users can't or don't want to install Office 365 Outlook on a PC/Mac, and/or can't or don't want to install the apps on mobile devices.
One example for me is at work. I have regular (non-365) Office, provided by my employer, and I use the Outlook application for work-related email.
However, I don't want to (and probably can't, and probably could get in trouble if I did) add my personal email accounts to the Outlook application.
Therefore I read personal email in a browser using outlook.com, and would prefer not to see ads.
I continue to see this situation as unfair, and would prefer Microsoft to address it.
But thanks for trying,
miwwgr