I don't see the necessity for sarcasm. The guy asked what I had done, I answered that I have educated myself of the situation, citing an example.
That's why I said if you post whilst actually understanding the situation, then thats good. My issue is with people who are not actually understanding the situation and just posting on social media because everyone else is doing it and because it may make them cool, it's an empty gesture which doesn't actually mean anything. For anything to actually change, the gestures must be meaningful or otherwise in about a month all of this will be forgotten and no one will have learned anything.
I haven't posted anything on social media although I did sign a petition. As a member of the public, it's my responsibility to treat people the same way regardless of race, religion, sexual orientation etc. If everyone does that, then racism is eradicated. Posting on social media doesn't do anything unless you actually understand the reasons behind it and what each individual member of the public has to do to confront this problem. As I said, I get that quite a few people are posting on social media in a sincere way to raise awareness for this issue (which is of course good), however there are also some which are to the contrary.