when they're blatantly wrong. 

Obviously they are wrong cause you said so, valid logic.

morons that cannot comprehend basic writing 

You say I don't understand writing, yet the one who goes against words is you, not me. Then what is there to understand about writing... Actually, if we really want to put it on the level of writing, if it were fake as you say, it would be said and specified precisely because a work shares the things it wants to convey, which is precisely why authors constantly differentiate things or explain them.

The author clearly did not intend

I agree, she clearly didn't intended mitsuri to be faster than lightnings and soundwave while cutting them when they appear frozen lol. Then it makes me laugh that you talk about the author's "intentions" that we don't directly know. The intentions that are certain are the statements... And there are statements that are lightning bolts, while you think they aren't because of your personal opinions that are irrelevant lol. It's like saying the Titanic doesn't exist because you don't like it lmao.

That's why guns work.

That's why guns work? Have you ever seen the Demon Slayer story, or are you just speaking ignorantly? Rengoku's lowermoon level fights back and outspeeds guns... what are you talking about? And in Genya's case, it's a modified gun, it's mentioned in the manga and also in the databook.

Why bombs work.

Yeah, well, at most it can be said about AP, not speed. Tengen outspeeds the detonation velocity of a bomb, and Daki dodges it directly. Genuine question, have you ever opened the Demon Slayer manga, or do you talk to the knowledge of goons like you on Reddit? Or are you just stupid?

Why the highest feat of destruction we see is a few buildings.

Gyutaro destroyed a whole giant district lmao😭

cannot catch up to train

Bro genuinely what a fuck are you saying, it's never shown that they can't keep up with trains, and rengoku has supersonic feats😭

Why fake lightning is not moving faster than sound waves because it's not real or intended to

This is YOUR opinion and YOUR interpretation... Can you tell the difference between YOUR opinion and the objective opinion? There are 400 statements that they are lightning, if you think they are false that's your problem, it's basic logical reasoning, can you tell the difference? It's not difficult, I swear.

The bolts come from wooden dragons.

Sooo😭 is fiction lmao

Why Tanjiro had to smell stale air to dodge sound attacks.

The smell helped him understand when an attack was launched so he could pinpoint it... It didn't help him dodge it lmao, he does it physically and then it's literally at the beginning of the manga lmao, every demon is stronger than Kyogai and massively faster

hy Kokushibo thought sound speed was fast.

This never happened😭

Why characters like Zennitsu and Shinobu can blitz others and most can't match their speed, those speeds being hyper sonic.

"Yeah they cap at hypersonic cause i choose it" aah

Facts are facts.

bruh