Ok, so this forum has 11 570 registered members and God knows how many more people from all around the world are browsing is as guests. That's pretty huge.
You have theories and even drawings of flat Earth that can be viewed by anyone who is smart enough to use internet.
So tell me now, if everything I read here was true, if there actually was a conspiracy theory, if Earth was really flat, what makes you think that powerful people with billions of dollars on their accounts who stand behind this conspracy would still let this site exist. Just like that. They've spend astronomical amounts of money to cover this up, and now the bunch of kids are exposing the fact that the world is flat to the entire globe (yes, globe).
Here are some of the answers that I wouldn't want to hear because they are stupid

:
-Those couple of people in charge don't know what internet is/they don't know how to use it/don't realize how powerful medium it is (and therefore don't even know about this site).Bullshit. Even my grandma knows that.
-They can't take our forums down.For Gods sake, you're using SMF..
-They would expose themselves by closing this site and prove everyone that the world is flat.Not really, they wouldn't leave a message like "omg we had to cloze dis cuz their rite about everything!!1"
Also, logging into your admin account is an easy task for someone with advanced knowledge about this.
After that they could say hundreds of things to make all of you look like fools for believing for example that the admins made this forums for a bet

There are probably a lot more stupid answers but as it's really early now I'll let you say them.
So as a conclusion, web sites have been closed and even people were murdered in history for much less important things than the shape of the Earth. Maybe they still don't think you represent a threat to them but I firmly believe that if the world was really flat, those powerful people that control the entire world for centuries wouldn't let me read all this.
But yeah, conspiracy theories have always been fun and will always be so I hope you're really enjoying all this.

Looking forward to your answers/comments/further questions.
Over and out.