SG users puzzle (Solution Posted - Puzzle over)

Yes another one! I created it after Sq1rr3l's puzzle cause I liked the idea. I was gonna hold it back until his puzzle was over, but then I saw mandrill post a similar puzzle. So I decided to release it.

So this puzzles for all you forum lurkers out there. The puzzle contains pictures that are related to SG users. Your task is just to guess the SG users. Simple right? Well we'll see how well everyone knows this site!

GA game: 89% positive reviews, un-bundled Not gonna give you the name of the actual game.
GA end date: 24th September

Puzzle link

Hints may be available if there needed. I'll see how difficult everyone finds it.
Well seems people are struggling. Hints won't be posted till tomorrow. Will let you all struggle for a bit first! :D

Hints

1. .
2. .
3. .
4. .
5. If you find Q6 you will find this one. They go together.
6. What is the person doing from left to right?
7. What kind of people wear this?
8. Well it's literally whats in the picture.
9. .
10. Let's just say this person is on my blacklist!
11. If your struggling your probably thinking about the wrong way.
12. .
13. .
14. This person hasn't posted in at least 9 months. You'll have to do a bit of lurking if you don't know.
15. .
16. .

There's your hints for now. Posted hints for questions that people are struggling and I feel deserve the hints. I left out simple ones that people are struggling on cause you really should know them! May also reply to some comments with additional hints so look out for that.

edit: I added a new answer for Q14. If you remember the user by a different name (a nickname) then you can try that answer and it will work. It saves you going searching through the forums if you forgot their name.

Solution

1. Khalaq or Per3zat
2. jbondguy007
3. MrsSadisticChicken
4. Student123
5. TreeB
6. jatan11t
7. Jekaterina
8. IgotElbows
9. cg
10. XMEzy
11. zelghadis
12. s1n
13. Rachellove
14. ColbyTheDog or Dolan
15. JoaoWho
16. deltabladex

I had fun with this one guys. Hope you all did as well! Hope you don't cry too much at your missed answers either :(