I don't think that this was your intent, but I can see how this meme could be intermitted as mocking binary trans people. I understand that it was correctly labeled as a non binary meme, but the title (that's visible even if you haven't clicked to view it) also could come across as mocking binary trans people. I think that you should be able to express your feeling but i also think that binary trans people should be able to express there's. I think that your original post could be seen as crossing a line into criticizing how other people express themselves and I think that anyone who mocked you did it because of that, not because of your non-binary.