Ok, so i've been playing this game for a year and a half now using mods, the mod I used is outdated so I'm using this one now. I've read some messages in this thread regarding their accounts getting banned, so I guess i'll help you out from my experiences.
So far the safest mod to use in this one is the stats one, and I highly suggest to just keep using that one.
Try and not talk in the world chat, if your account is a low leveled one and you already have high tier characters,
people will notice, veterans especially, some might check your profile when you're talking and report your account and that's game over for you.
Areas that are safe to use the mods are normal dungeons on easy to hard
Upper dungeons, conquest, the stockade and the royal vault are fine.
What ever you do, don't EVER use any mods for the rest of the modes like world boss, guild raids etc; HELL mode especially is a huge red flag.
I wouldn't risk using the mod for any holiday related events like the halloween one that's currently happening, better be safe than sorry.
Just do this and your account will be safe, don't get too greedy with the mods EVER.