@cwebber yeah, I haven't been on Twitter in a hot minute but I lived there for years and you could see things like follows and the most telling was Likes, even before they started getting put in people's TLs, you could look it up -- which were legit the first way we found out JKR was a terf, she wasn't posting it yet or RTing even but she was constantly liking terf shit.
However that was the most detailed info you could get on someone, the one thing they didn't necessarily intend to share.