I think you should reread your question. To ask if I would "automatically dismiss anything" someone would "say and assume they can't grasp the topic" due to "incorrect" terminology may deserve this reply, but not an answer. It reminds me of asking someone if they still beat their spouse.
Okay, perhaps that was a bit of a confusing question. I was attempting to ask the question without going into the details of the encounter but maybe those details are important. I'll paired it down a bit but keep the important details. On another breed thread poster #1 shared some photos and stated her cockerel was biting her. She stated how she thought it was funny and he must love her. I warned that this is not behavior you want to encourage. Poster #1 then asked how you correct it. I replied that she should search BYC and get advise from the more experienced. I specially said I only had experience with an aggressive pullet, shared how I dealt with her, and stated I had no idea if the same steps should be taken with a cockerel. I also posted some advice I had read others post but made it clear the same processes didn't work for others. I also told her that some aggressive roosters can't be rehabilitated. I did use the term roo when referring to mine. Poster #2 came along and posted a mini rant about how she hates the word roo and thinks anyone that uses it has no real grasp of the subject. I replied that she shouldn't make assumptions and if I posted something incorrect then to please correct me. The reply to that was something like do what you want, serious breeders don't "take the infantile seriously."
So I assume that I didn't actually give any wrong information since poster #2 didn't point anything out. I know I don't have the experience (something I made very clear) but I do believe I can grasp the concept of aggressive roosters and some of the signs. I suppose I was just taken aback that this person came along and just dismissed me completely because of the use of the word roo when nothing else I posted indicated I had no understanding. And then instead of having a civil and adult conversation they result to name calling. I feel sorry for this person. Afterward I was curious if the use of the word roo really was that annoying to the more experienced.