Trading has been discussed plenty of times on this forum. Trading gives nothing to the game but a great way to abuse and cheat end of story.
No, it's not nearly the end of story by any means.
If there is a "trade" executed where both sales do not run afoul of the transfer market rules, then it is perfectly legal, is not abuse, and is not cheating.
NO ONE at this table ordered a rum & Coke
Charles: Penn has some good people
A CT? Really?
Any two will do
Any three for me
Any four will score
Any five are live