Battletag: Myyse#1913 Region: NA TRADE: Yes, you first
I've personally found a lot of success with Potion of Polymorph instead of Mana Bind. Best case scenario Mana Bind nets you a burn spell, but is really unreliable. Just need to be careful to play Potion of Polymorph AFTER Mirror Entity, unless sheep are your thing. Very good for stuffing Hunter Turn 6 Savannah Highmane, or the big 8/8 quest reward minions.
Copying quest reward spells sounds great in theory, but delaying them with Counterspell is better, and if you really need the 5/5s, or Imps by the the time it's relevant, you're probably already in a bad spot. And if you get Time Warp, you're already dead.
Definitely a bug.
Your analogy still doesn't really work, as there are no consequences for roping in Hearthstone like there are with regards to traffic laws. If the HS team viewed roping as a serious problem they'd do something about it... Eventually.
I like combo decks in theory (Especially Malygosbased ones), but in Hearthstone 75% of the time a "Combo" deck is just an OTK deck that relies on you having decent draw for your combo pieces. If you get a decent draw your opponent just goes and makes a sandwich while you kill them all at once, while if you don't you just... Flop over and die pathetically. Neither of those two things is much fun for someone.