I will also say that I know from experience people in this game are notoriously averse to advice and feedback, here's a situation that happened not too long ago:

I was leveling GNB, and got Akadaemia Anyder on roulette, party was me, an AST, and two DNC, halfway into the last pull, the Healer DCs, and we wait a bit for them, the entire time, the DNC had Dance Partnered each other, and since I main DNC and know the ins and outs of the job pretty well, I bring it up, I forget the exact words but I remember the tone, so paraphrased "By the way, you shouldn't Dance Partner another DNC, the buff doesn't stack with itself even from different sources, so if there are two DNC in a dungeon, it's best to Partner the Tank and Healer so the buff at least is going somewhere.".

I get complete radio silence from that, even though I felt I was pretty passive in how I phrased it, and decide to not push the issue, Healer comes back, and we start the fight, about 40%, everyone but me dies, so I go in chat "Should I wipe?", and immediately they respond "Nah, just clear if you can", and well, I have a stockpile of Hyper-Potions specifically for such situations, and I am able to clear the boss without trouble thanks to a couple potions even if it took a bit, but it stuck to me how they deliberately ignored the previous advice since they were obviously reading chat, it wasn't a situation where it was worth getting upset or even annoyed over, just notable enough to commit to memory.

This is why I raise an eyebrow when someone starts complaining about advice, my situation was one where they didn't respond at all, but I have seen so many over the years where people will snap back to the gentlest advice, it especially bugs me because I have benefited from such unsolicited advice before, when I started playing I was an absolute Curebot WHM, spamming Cure 2 and keeping full Regen/Medica II uptime, it wasn't until a run of Castrum Merid where the Tank went "By the way you don't need to heal me so much, I can stay alive, just use Holy when you can", and I was able to immediately internalize the advice and improve, so I tend to find it disheartening when someone is so quick to shoot down advice given by others, even if completely unsolicited, and much as OP claims have been doing otherwise, we do have solid evidence of how they play the game in content that is completely casual, so it doesn't come off as if the advice was truly needless.