The content here is definitely a useful meditation on what people's core ideals are over time, but I think it paints a really shallow image of human beings. Of course people's Twitter bios change over time, they're a roughly 25-word blurb, not a perfect representation of the individual running the account. People are allowed to feel some topics need more limelight than others at certain times of history, that doesn't mean they're some horrible vulture using the cause for personal gain. Just because you take Bernie2020 or BlackLivesMatter out of your Twitter bio doesn't mean you stop caring about those things, it just means you changed your Twitter bio.