Apropos Basic Attention Token:
My Brave Browser tells me the following:
"You’ve designated 8.8 BAT for creators who haven’t yet signed up to receive contributions. Your browser will keep trying to contribute until they verify, or until 90 days have passed."
steemit.com is one of these sites which haven't signed up yet to receive contributions.
Read more here.
Ironic. I discovered steem when I was trading BAT about two years ago.