Student Talk / No copy essays / Self-censorship / applying to 10 schools - some questions [2]

I stumbled upon this site looking for essay examples, and this site seems very useful.
I am about to be a senior in high school and I'm currently writing essays for EA.
I do have a couple questions about this site and other things, though.

1) How is it ENSURED that nobody will copy our essays?

2) I have been suspended my sophomore year for something I won't want to speak publicly about. How should I approach writing an essay for that?

3) How do people on here feel like applying to about 10 schools (5 reaches, 4 matches, 1 safety)

Thanks!