It's really not that hard

That is not always wrong. For instance: "What did you step on?" (Also, I noticed your first sentence uses passive language. I thought it was clever.)

I have heard that it IS the hardest to learn when you're learning it as a non-native speaker.
I've also heard that Icelandic does come a very close second or may be harder, depending on opinion.

Really? I'm Spanish and I find English easier than Spanish or Catalan (my mother tongue).

Not sure if troll, or especially stupid.

Joke, I assume.

this must be a troll