Thoughts on my Week ban on Fourtitude

So someone is selling a used JHM intake manifold on Fourtitude and i posted in the thread that the price seems a little high and that they have generally been selling used between 900-1k in price. Apparently, you get banned for that. Meanwhile, ive never had any kind of warning before (to my knowledge).

Either the seller is that butthurt that he had to cry to an admin for me to get a week long ban, or some mod over there has a power problem. I just dont get it. The way i grew up, if you have an issue with someone you speak to them like an adult and handle the situation. in my mind i dont think i was out of line, but someone told me it was rude. If thats the case say something and ill edit or delete it. Thoughts? was i out of line or not.