My observations.

Alright then...
I might as well have some fun with this. I'll start by searching for leads.

If you aren't lying, then I believe you and Eru are closely connected.

Eru's and your posts follow a similar usually follow a similar pattern. Many of Eru's replies to your posts are made within 10 minutes of your posts, and vice versa. Although I doubt this means anything since it's not consistent enough... The fact that you both press the enter key after a sentence is noteworthy as well.

I don't have much to go on, but I'll take a guess. I think you've had your 'goal' before you even made a forum account here. If you and Eru aren't the same person, then I suspect that Eru already knows your mysterious goal. I think you made Eru say he was interested in the goal or planned it out together and agreed upon him posting that. If he doesn't know about your goal, then I think he knows more than we do or has a fairly good idea of what it might be since he's known you longer than anyone else on Rune2006. Or there is no goal and you just told us that there is to stimulate us? (By 'us' I mean the players of Rune2006)

Wanna give me a hint? How many devices in your current residence can browse the internet? And do you use these forums when you're at work/school?