The actually violent leftie anarchists knew all this stuff ahead of time and didn't leave digital trails. Their whole gig was opposition to the police, which means they knew what they were facing and how the system worked.

What's notable about the capitol mob is the fact that, while yeah, they knew they were attacking congress technically, they figured that doing it in service to a sitting president made it legal somehow.

Needless to say, one of those motivations is a lot scarier than the other.