There are so few of us in Canada.
They're making themselves liable to facilitating child porn by not acting like a common carrier. It's called "safe harbour." They don't get prosecuted if they inadvertently give a pedo an account… provided they don't edit content. If they cut accounts (like they are doing now) that's arguably editing content and removes this protection, plus opens up a lot of 1A avenues for lawsuits.
Similarly, the phone company can't refuse to install phone lines to the GOP (like a baker can't deny a gay couple a cake).
t. still can't believe John Perry Barlow is gone, remembers arguing about this kind of on the early internet and thought it was settled