If you subtract two from your Lin# you can see the status of the person behind you.

In the USCIS check status box. In my case the dude behind was approved DACA last month and his card was already delivered.
Do you think this means I'm next? Or is this irrelevant? And what's the meaning of life?

It's actually illegal to be looking up other peoples receipt numbers if uscis finds your IP address and they see that your typing in other peoples receipts, you can get in VERY SERIOUS trouble.

I am sure he doesn't have a static ip address so how would uscis takle that?

The numbers before or after doesnt mean you are next... i think it depends on your expiration...
The numbers before and after mines were approved last month too...
next week ill have 1 month left on my original EAD... probably ill get an update soon

link to this?

I am sure his ISP has a static IP. What makes you think he or she does not?

It doesn't say the persons name so how can this be illegal? It doesn't say anything about the person. Just if he or she was approved. People can miss type their number. USCIS doesn't give out any personal information. And it's not like I'm using the number to get a job, buy a house, a car, Credit cards, or an airplane.

Please show me where it says it's illegal to look up other people receipt number? Shit, I think I broke the law again.

ISP is the same as customer? Is that what you are saying?

People getting off topic, anyhow this is a good answer (The quote)

Irrelevant, seems like renewal (if that's what you are waiting for) is mostly going by expire dates of the EAD rather than the first come first serve method. (Yes, I know there are exceptions, but if you were to say graph it out and do some linear regression analysis, obviously it will show a pattern between EAD expire dates and approval dates).

If you're waiting for an initial DACA approval, then yes, I believe it could mean that your case is soon to be reviewed. (At least this was the case during initial initiation of the program in 2012)

And lastly... meaning of life is to be intentional.