I'm seeing a couple kinds of confusion in the trading section. There are people who just didn't remember to put their region in the thread title. But also, some people new to the this forum, don't realize they can trade on any realm in their region by quickly making an alt.
I'm wondering if it would be easier for people if the pet trading had a separate section? Between the "WarcraftPets" forum section and the "Off Topic" forum section would sit a "Pet Trades" section, and there would be 2 forums under that titled something like Trades on European Realms and Trades on Americas/Oceanic Realms. I don't know if you'd want a general trade forum as well, maybe a section for rules and q&a or something, or they could just post in one or the other no matter the topic.
The one sentence forum description under the two trade forums could make the reason clear, and let people know they can trade on other servers now. Maybe something like, "Trade pets on any server in your region, by making a temporary alt."
Some of my best friends are imaginary…