1. "To be honest, you just seem salty and reactionary" is NOT gentle in any way. Especially the word "just" implies that there is absolutely no validity in his claims, soley due to the unproven claim that he is "salty and reactionary." You could have said it in more insulting ways, but that's still pretty rude.
Whether it was gentle or not is up for debate -- the intention behind it stands.
You've got a pretty selective and extreme interpretation of the word "just", but I will admit that I was implying that I do not think his argument had much behind it, and could have been caused by an NPE.
2. That was absolutely an ad hominem, no real question about that. Ad Hominem can be a good argument, in some cases. For instance, if there was a political debate where one was in favor or a bailout for a bank, and the other was against. If one said the other had a stake in the bank, and bailout money would be fiscally beneficial to him, that would be ad hominem, but not fallacious. Your argument, while not fallacious, is baseless and unwarranted. There is no evidence to support that his only motive for making this post is "salt."
An ad hominem necessitates the personal trait being used to undermine an argument. I've stated a few times that I think it may have caused their position, but I never said, and never intended to imply, that I think their arguments are wrong because they're salty. If that were my intention, I don't see why someone would think I'd also posted about G&W, Kirby, and Puff while acknowledging no arguments for the other crouching characters (though I did think about it and acknowledge it later.)
Also, it's not standardized whether or not people should call non-fallacious critiques of positions via personal aspects an "Ad Hominem", but it doesn't appear the OP was using it in that sense.
3. Hostile may not be the right word, but it's certainly rude and toxic. If your statement was valid, that would defeat literally any balance point on this board.
Again, I don't think mature discussion requires not pointing out plausible negative traits [as explanations for why positions arose.] Even if my statement was valid, it shouldn't change whether or not crouch-cancelling should be altered -- it would only say anything about the cause of his having a complaint to begin with.
(in 3.02)
"Guys, I think mewtwo may be overpowered, it's just rid-"
To be honest, you are just salty and reactionary
"Lucas has an absurd ability to combo and kill out of tho-"
You're just salty
etc.
A more proper example would be, "No,
because you're just being salty and reactionary."
The only time it would be fair to call someone "salty" in a thread like this, is if he did something like call everyone who uses crouch canceling a !@#$%^ or something. He presented his point in a calm a collected manner.
"Seem salty" =/= definitively being "salty". I acknowledged that it wasn't for sure, just that I was getting that vibe from them, for reasons stated in my 2nd post. I do find there to be a tangible difference between, "You are jealous" and "You seem jealous". The former doesn't leave it up for debate and doesn't offer the accused as much room to defend their self (especially to convince the accuser) while the latter is much softer and leaves things up in the air.
You keep using the word polite, but you don't seem to understand. You don't get to judge whether or not something you said was rude, the person you said it to does.
This is just plain absurd. If a Gas Station clerk says, "Thank you for your business," is the customer in a position to decide whether they were rude or not? Etiquette is, by definition, codified, and is usually associated with entire societies. It is not a subjective realm, at least not from individual-to-individual.
Calling someone's point invalid because they are salty is about as rude as calling a women's complain invalid because "she's probably just on her period"
Thankfully I didn't attempt to invalidate an argument as a result of a personal trait/circumstance, I offered it as an explanation for the position coming to be.
If you (or anyone else) wishes to continue this, feel free to PM me, but it's better we don't spam this thread with this kind of stuff.