It's a public forum and you have a username as an identity. What do you have to worry about? Don't identify yourself and no one will be able to figure out who you are and what you do. This isn't facebook dude, and anyone that posts themselves shotgunning beers on facebook profile pic and identifying as a pilot is plain flat out stupid.

Now, since you really want to know who I am. My name is Sully Sullenberger.

Get the point?