When you reveal a spoiler the black rectangles go away and it then renders the text in white, but on a white background (light coloured theme) The text renders is exactly the same colour as the background and so you can not see it unless you highlight the post, this renders the background of the post as light grey and there is just about enough contrast difference to now read the text.
When spoiler text is revealed it should render in the same colour as normal text. I'm not sure why it's white.
See images below for demonstration.
I wouldn't have cared would I, because I would never have found out about it. If you think this is some kind of gotcha then you've seriously missing the plot.
You really can't see outside of your own bubble can you? There are a lot of people who fundamentally disagree that it constitutes murder, they do not believe someone that has not yet been born, and frankly doesn't even have a nervous system yet, is a human. You're operating on the faulty assumption that your belief is universal and so people think murder is fine, but really your several steps back from being able to even begin to comprehend their argument.
Trying to explain abortions to a fundamentalist is like trying to explain science to a fundamentalist, your whole world view is just so completely skewed that you can't even comprehend what I'm saying.