For me, it's really exposed how large media platforms (i.e., a few very rich and powerful people) can shape public perceptions (e.g., by blocking, shaming, nudging and belittling certain ideas and/or people, and promoting others).
I'm no longer so quick to dismiss other people's unusual opinions, or to label them "conspiracists" without looking as openly as possible into what they're talking about (including from sources associated with intelligent people not necessarily in the mainstream media). I don't trust Wikipedia (or Urban Dictionary) without question (which I shouldn't have anyway, but...). I have more respect for people who are willing to say unpopular things (e.g., left-wingers who don't like the EU). In general, I'm far more likely to take news stories with a pinch of salt.
Anyone else?