Pretty sure they’re just gambling that this’ll give them a bump in installs/logins with their mobile app that they can use to boost their figures for IPO.
I think they are leaving some of it up so the spez stans can "come to his defence" and this constant back and forth will generate traffic which is what he would use to convince investors to invest.
I think they realize that trying to prevent the “fuck spez” content is futile, and are instead focusing on blocking stuff that tells people about lemmy and other reddit alternatives. That’s much easier to get away with.