There's some resources scattered here and there about which shops are dangerous and which aren't, but I thought it would be cool to have a thread where people could share their experiences. I'd be willing to compile it into some sort of guide too.
From my experience alone, I've only ever been frozen for using stamps, though it's been like 4-5 times... I learned the hard way with my main the first time. I've lasted around 2 months to one day - yes, one day. Buy times were pretty average, I'd say 1.2-1.5 seconds. I don't expect to last in stamps anymore but you can make a huge profit quickly.
I've ABed in fresh foods, the attic, booktastic, collectable coins, and spooky foods consistently without ever getting banned. I think I've used sub 1 second times in booktastic too... So as far as I'm aware, all these are pretty safe generally.


