I think the settings of meme are legal. Has anyone ever been banned when using semi？

no its undetected

dont open anti aim and fake lag

Overwatch works, so yes, it's possible you'll get banned if you play too obvious.

I've using MemeSense since 1 year ago, fully semirage and i already used 180 FOV with Silent, still no VAC or Overwatch anyway. So yes, the cheat is pretty OP