Let me get back to the real topic, if you are posting a black square in your social media but not saying anything else, not sharing info, not donating or looking for other ways you can lend your support, then it does nothing it means nothing. I've already donated to 1 organization. Don't just post a black square because everyone's doing it.
Ways you can help:
Donate
Sign Petitions
Text or call
Ways you can help:
Donate
Sign Petitions
Text or call
Comment