Honestly, I've found the Non-Forum Trades too often to a bit of a mess, however, I don't discount it, because a lot of people use it. So what I do, instead, is - when I post a Trade, I post it to show on the Cave Trade and the Forum Trade, and then - ignore everything but the Trade Teleport & Offers Page. This allows me to more easily just "look" at each item and decide if I want to consider it, decline it, etc.
I don't get caught up in where the offer was made, or if someone makes a goofy offer, or if someone makes an offer I really wanted, but I waited a little longer than they were willing to wait so now the offer was cancelled on their end, etc. I do make a point to log into the forums to see if there are Private Messages from people I know who know things I like who want to arrange something, but that is different.
I just treat them as (3) different steps in the process and, worst case, it is a dragon pixel game. It can be really frustrating when you are a growing player and collecting and people are being goofy and it is frustrating. And you can say "Well that is easy for you to say, you've been playing for XX years and have this and that and aren't nearly as active as you used to be (and you are older and aren't as invested perhaps)" and I would say "Yes, that may be correct." (Although, in fairness, if I didn't spend more time on life stuff - which I love doing and having that kind of stuff that matters more - I could have had a lot MORE, but I like giving back and poking in more these days), But then I'd challenge you to find that thing that can really shift down the frustration level you feel. Other activities, hobbies, goals, etc.
Because here is the thing - the people who make goofy offers, including those who are purposely malicious and want to trip you up and basically get a what some would consider a steal or a cheat because you trusted, Ok, they got your egg. But now they are in your head controlling your mind and life and emotions. You have given them that power. Do you think they are giving you any thought? Probably not, maybe they gloat for a second or feel really happy or off doing some other sneaky thing, but - don't give them that power. Logic it out, journal it out, think it out, meditate it out, find something that is more meaningful and switch to that, walk away from the computer, or go scream at your walls and punch pillows and take a nap for a bit if it just causes an amygdala hijack (we all have times where something minor just infuriates us beyond reason, we all experience it). But then work to make that not a future trigger by making lists of future plans and current plans to make life better where you are able to better detach even that annoying frustration, shrug, go back to life and come back to the dragon pixel game when you want to blow some time on some mindless fun and get more engaged with the community here.
There are a lot of awesome people who are very generous, fun to talk to, lots of player events that do awesome things to give a lot of really awesome dragons to breed for free or as prizes for games or raffles or nothing other than just a nice message request. These people are the true delights of the game. Go find more of them, even reach out to those you don't know if they say its OK in their Sig/Profile (some of them just DIE and LOVE to breed and gift to people and are super sad when they can't do more of it - seriously, they want to give you so much awesomeness) that it will make trading more of something you do sometimes when you have it, but instead, you get awesome dragons and connection and community and maybe even some cool online people to know or become friends.
That is how you really Win DC.