Read post 2. Never heard of that though:
us.battle.net/sc2/en/forum/topic/109981098
That's regarding Blizzard's built-codes (like the originals 'Power Overwhelming", ect.).
I've used the trainer extensively in singleplayer.
I also play multiplayer regularly. Haven't gotten in trouble.
Hm, well I'm mainly going to be using it for like additional resources here and there so I don't run short...
But just to clarify since in the end a yes or no is the best answer for something like this...
It's all right as long as I don't use it in MP or use something that gives all the achievements with one button?
I'd like to know about this too.