A. Unless you have something to hide or don't want others to know your name, don't worry about it. If you really care, just create a new account. You only have 2 posts. It's not a big deal.
B. If I had my way, which I dont, I'd get rid of the early application process. First of all, it wasn't intended for you, the applicant. It was intended for the academy to try and entice and get committed, more of the stellar applicants. The applicants who WILL be accepted to numerous colleges, universities, and even other academies. If they can let that stellar applicant know of an appointment in Oct, Nov, or Dec, then they may accept it instead of one of their other many options. Vs. waiting to hear until March-April when they may have already accepted one of their many other choices.
As for the EA process, pretty much everyone is EA eligible. I had 12 applicants this year. All of them were EA eligible. Next, unless you're one of the stellar applicants, meaning the top 10% or better, you'll probably be in the same boat as most of the other applicants. You'll find out if you received an appointment in March-April. If you are one of the stellar applicants, and you finished your application prior to November 1st, you'll find out on or before January. Depending if you received a nomination or not by then.
Point is, if you are the 3.95-4.00 unweighted Gpa applicant, with 30+ACT or 700+SAT scores, have tons of extra curricular activities, sports, volunteer time, leadership, etc. and pretty much will get accepted to any school you apply to, then YES, the EA program will allow you to know sooner instead of you accepting one of the other options because you haven't heard from the academy yet. If you aren't that student, then it doesn't matter.
And for what it's worth...... NO...... You don't get any extra points or extra consideration because you have EA status. Like I said, pretty much everyone is eligible.