First question: do you really like the "Self Actions" option?
Second question: do we really think that everybody should have a "Self Actions" option, enabled as default?
Honestly, at first, most Phorge/Phabricator newcomers find this option very weird and annoying. I mean, I personally like this option, it's useful to recap my day, but I personally would leave it disabled as default, and enabled only for my user.
In my perspective, for new Phabricator installations, having this option disabled would this saves a lot of time for administrators, since they do not have to explain to every users how to disable that option.
Honestly I will continue to set this option as disabled by default in my personal Phabricator installations, so as not to be killed by my users. Are you in a similar situation?