What? The nuances and richness of language come from the correct, precise meanings of words! If we can't agree on specific word meanings, how can we hope to ever write anything meaningful if every reader comes to each word differently. We'd completely lose all subtlety.
Let me hazard a guess - you're American, right?
I've had this debate several times before on the internet. And the two schools of thought tend to divide on geographical lines. As I've said already, US English tends to operate by a series of rules. One side effect of this is that users of US English can have strong feelings about the correct meaning of words.
UK English, by contrast, is more chaotic. It is not so rules based. And while we also have sticklers for correct usage, we tend to be more welcoming to new words or new definitions.
Not saying that either is right or wrong. I'm just aware of the difference.
I'll give you an example. I write a lot about chess. Chess has its own terminology for different kinds of positions, different checkmates, different openings. But these words have never been codified or formalised. So different chess authors use words to mean slightly different things. Chess words also change over time.
Many of the US English speakers take the view that a word has to have a precise meaning. So they will go all huffy about a word and quote something (usually wikipedia) which they say is the definitive meaning. Then someone will find another source and say that it gives the definitive meaning. Repeat, repeat, repeat.
Meanwhile the UK English speakers will mostly shrug and say "guess what? That word has more than one meaning. Or the meaning has changed over time. Or it has an unclear meaning."
What does "bad" mean? Or "gay"? Or "sick"? That all depends on the voice you are using and the era you are writing for. If you want speech to sound realistic you can't hide behind "correct" meanings.
I can't remember who said it, but it's a phrase that's always stuck in my head. "You British are so quaint. You think a good screw is a conscientious prison officer."
Last thought. Many of the words and phrases that are in common usage now were invented by a writer playing with meanings. It sometimes seems that you can't read a passage of Shakespeare without tripping over a word that he invented.
It's a good job that he didn't have a hang-up about the correct meanings of words.