How well do you know the forum?

[MisterL2]

The following post contains a mixture of riddles combined with a bit of Forum knowledge.
There are 5 levels.
If you figure out a level, there will be a code, e.g. "Level 1: QAX132"
then you write "Level 1: QAX132" in the chat and you are have been the pioneer of that challenge.
The higher the level, the higher the difficulty. The winner is the person with the most levels done, in case of a tie the person with the more difficult level wins.

Enough talk, let's go!

btw: You'll have to search a while until you find Level 2.

Leaderboard:

Level 1: Helios
Level 2: Helios
Level 3: Helios
Level 4: Helios
Level 5: ika

LvL 1: LAQ909

[Helios]

Level 1: LAQ909
Level 2: MNY146
Level 4: SXY 778
Level 3: piu 657

[ika]

LvL 1: LAQ909
Levl 4: SXY 778
Code for staege 5:IOP 91
3: piu 657

[MisterL2]

First place: Helios
Sadly, one of the levels bugged and Helios is excluded from solving that one - who'll finish second place?

[MisterL2]

The code for stage 5 is slightly messed up but I see you got it right ;=)

[powerofdeath]

LvL 1: LAQ909
LvL 3: piu 657

lol

[chitownmvp01]

I joined yesterday, so I don't know the forum very well. Yes, I'm a noob I suppose.