ok this is interesting. Last time I checked her Twitter was around the time of the scandal, that is when I noticed that her tweets were hidden.

I only looked at the Tweets tab, if you scroll down and let Twitter load her feed, only a few tweets are visible.

Just now I clicked Tweets & Replies tab, scroll down, you will see most of her tweets load, except there is nothing from 2019 except that 1 RT of guppy48_

In both cases it still shows at the top

中井りか 2,106 Tweets

I know for sure that Maho nuked her SNS when she switched agencies. Now I am not sure what happened to Nakai's twitter because I never checked Tweets & Replies back then. I only looked at the Tweets tab and noticed that most of her tweets were gone and it still had that large total at the top.