I'm going to take the phrase "cross the picket line" away from tumblr until everyone actually starts reading strike demands and listening to union leadership and strike captains.

Random bloggers declaring things "crossing the picket line" means nothing. Read the actual goddamn strike information from the actual goddamn strikers. Stop calling for your own boycotts, stop trying to decide what is and isn't scabbing based on your own opinions, stop making judgment calls disconnected from the actual demands of the actually-striking workers.

Y'all have got to start reading the unions' official documents before arbitrarily deciding what is or isn't "proper solidarity" based entirely on your own feelings. Stop muddying the waters just because it makes you feel more involved.