As far as I'm concerned, there is something seriously wrong with Miraheze, and they have to be addressed.
In terms of Miraheze disallowing politics and religion, if that's Miraheze's problem, that's their own fault, because that way they are not only controlling people on what to do in terms of freedom of choice and speech, but also being hypocritical in the sense of allowing people to be politically incorrect about anything else, but are against people being politically incorrect about religion and politics. The very point about freedom of expression is that all of us should be able to have an opinion. As far as I'm concerned, what Miraheze is doing, is censorship, and that's a bad sign.
Besides, what we all need to understand, is that by all means, we can debate/oppose the opinions in whatever way we want, but censorship goes against freedom of expression, even if the opinions are terrible, and that is far reasonable. Censorship is not reasonable, and it interplays with controlling how people should think.
Plus, it also needs to be understood that no matter what the negative opinion are, there are always going to be some people could have an unreasonable reaction, no matter what thing it is, so it's stupid and narrow-minded to say, that politics and religion are the only ones. There's a thing called give and take, and that's something that also needs to be understood. By all means, opinions can be opposed, but there is also such thing as objectively bad or good, which is where opinion is left out of the equation.