Category error. I don't think controversial arguments have different standards of proof for validity. This isn't a debate society, it's a community. It has norms grown over the last decade that allow it to continue growing by welcoming anonymous newcomers without burning itself down. Your comment was, reasonably, perceived as rancorous. We have an immune system tuned to rancor. Its response to your comment was allergic rather than immunologic, but I don't blame the pollen when I step outside and need to blow my nose, if only because there's no point in doing so.