Bad stuff can only happen because of good stuff. If you know about bad stuff, there must be good things for you to contrast them against. Removing all the bad would remove all the good too. We just need to bring more good into the world. And we can all do that!
Let’s get creative! Just don’t eat a heart. (May be disturbing to younger viewers. Also totally unrelated to the message behind this answer.)
2) I’ve touched upon this before. I might be now. There’s just certain things I wouldn’t want foals exposed to, even if an adult willingly chooses to ingest something illegal.
3) I would say an adjustment to the marriage law would probably be more likely. Not that I consider that particularly likely either.
4) Nonsense. Hiding Discord there wouldn’t have been a very good disguise if other statues were criminals too. And really, who else would require such an imprisonment? Discord is immeasurably powerful.
5) The drugs were finally traced back to the Griffon nation. Borders were closed. A few well placed raids and a little time and there was nothing left.
See, the biggest narcotic in Equestria during that time was a salt-like rock called Arid. To the pony body it could serve as a replacement for salt, only it was a poisonous hallucinogenic as well. But the main ingredients for it don’t form in Equestria.
Edit: Oh yeah! Fuselight came over and we did a few asks with him as a guest! Those will show up in the morning queue starting Monday.