When you write fanfic, you quite often get a bit of feedback along the lines of - "I liked it but I thought this part was a bit unbelievable because of X, Y, Z."
And that's fine. Often with me, it's because nobody edits my work so if it's a long fic, I'll sometimes forget that I've told the reader one thing only to contradict it in a later chapter. It happens.
But my favourite example of this sort of feedback is when someone said about JWTDO something like - "I enjoyed it but I think it's far-fetched that Remus would be able to afford his own house in London on a vet's salary when he has a chronic illness."
Firstly, it's set in Bristol. Bristol is not cheap but it isn't London expensive. Not everywhere in the UK is London.
Secondly, healthcare is free here. Having a chronic illness does not impact your ability to buy a house (unless, of course, it impacts your ability to work). I have a chronic condition and because of that, I get all my medication free. I don't have to pay a penny even though I'm a bit of a burden to the state.
I pass no judgement on other healthcare systems, but it's super important to me that those of you who have to fork out a fuckload of money just because you're unlucky enough to be unwell understand that... that's not right.